How to Rip Office Christmas Party (2016) Full Movie DVD on PC/Mac

2016 Christmas season is coming! A set of Christmas-themed movies are about to release to make more funnies for this giant national holiday. Office Christmas Party is one component of this set of Christmas comedy movie aiming to bring a relaxed moment full with laughs to everybody. Some people can't wait to go to cinema to find out what kind of story this film narrates immediately while some others unfortunately lose the chance to watch it during release time for multiple reasons. If you are the later one but don't want to miss this movie, how to do? Wait for the DVD! It is also suggested to rip Office Christmas Party movie DVD to MP4 or other formats for a backup or playing on portable devices whenever wherever.

Office Christmas Party Overview

Release Date: December 9, 2016 in theater | Estimated for March 2017 on DVD
Directors: Josh Gordon | Will Speck
Starring: Jason Bateman | Olivia Munn | T.J. Miller
Production Companies: FROSCH Entertainment | Bluegrass Films | DreamWorks Pictures | Paramount Pictures | Reliance Entertainment
Genre: Comedy
MPAA: R-Rated (Crude sexual content and language, graphic nudity, drag use)
Plot: Clay plans to host an epic office Christmas party to attract a big client and stop his sister to close his branch. What will happen?

Best Tool We Need to Rip Office Christmas Party Movie DVD

DVD ripper is essential for making a digital full movie copy from Office Christmas Party DVD. In consideration of various special DRM schemes on new movie DVDs, this DVD ripping software must be able to well handle any DVD copy protection. Well, WinX DVD Ripper Platinum is the matching one.

WinX DVD Ripper Platinum is a highly-acclaimed DVD converter, which primarily features ripping DVDs to digital in a diverse of formats. Besides general DVD discs, it can also circumvent virtually any encryptions on commercial DVD movies, like CSS, region code, RCE, UOPs, Sony ARccOS, Disney DRM and advanced new or unique techs. Built-in 350+ video, audio and device profiles, it can rip DVD movie (Office Christmas Party included) to MP4, AVI, WMV, MOV, FLV, WebM, iPhone, iPad, Apple TV, Android smartphones and tablets, Windows devices, PS3/4, Xbox etc, without quality loss. What's more, it can reach an extremely fast DVD ripping speed owing to Super Encode Engine, Hyper-threading Tech and Multi-core CPU support.

How to Rip Office Christmas Party Movie DVD with WinX DVD Ripper Platinum

First of all, please download and install WinX DVD Ripper Platinum on your PC. It also arrives with a Mac version helping you rip Office Christmas Party movie DVD on Mac.

Step 1. Insert Office Christmas Party movie DVD into DVD driver. Launch WinX DVD Ripper Platinum and click DVD Disc button to load the DVD.

Step 2. A couple of seconds later, all titles of this DVD will be listed and main title will be automatically checked. At the same time, Output Profile window pops up. There are several profile categories offered to you, including General Profiles, DVD Backup, Device Profile, Web Video Profile, Music Profile and more. Next, select desired format from certain profile category as output format. In this example, we pick MP4 Video (Codec: h264+aac) from General Profiles.

Optional. WinX DVD Ripper Platinum gives editing options enabling you to crop, trim DVD video or add subtitle (.SRT) to DVD. Additionally, you can modify video/audio parameters, like bit rate, frame rate, aspect ratio, sample rate, to get a customized resulting file with special effect.

Step 3. Browse to set a destination folder and click RUN button to start ripping Office Christmas Party full movie DVD.

Source: https://www.winxdvd.com/resource/rip-office-christmas-party-movie-dvd.htm

Where and How to Download Free E-books to iPhone iPad

E-book, this digital form of book publication, is proved to be extremely successful with a fast growth in recent years not only thanks to its native portability, lower prices (even free), but development of reading technology, software and devices. Internet is absolutely a resourceful library treasuring up billions of books in any genre. Amazon, eBay, iTunes and other similar online stores are great places to explore e-books. But where to get free e-books? If we want to download free e-books for iPhone iPad, how to do? Let's unveil answers one by one.

Where to Download Free E-books

Hundreds of free e-book download sites swarm into the market supplying lots of freebies. But, book limitations, security problem and some other errors of a part of sites may disappoint you. Here, we would like to introduce top 3 sites for free e-books download which collect diversified books in different formats and deliver green downloads.

Project Gutenberg

Gathering over 53,000 free e-books and continuously adding new items, Project Gutenberg is the first recommendation for e-books free download. Every e-book is given in several formats, like EPUB, Kindle books, TXT in order to fit different devices. You can directly read book online or free download wanted format to hard drive or send to Dropbox, Google Drive, OneDrive. Book Search Page allows you to find a book with keywords or get popular/latest/random books, while Book Categories page can help you browse books from specific genres.

Free-Ebooks.Net

Open Free-Ebooks.net. An obviously category list is displayed. Then, scroll down to access to other book lists: Featured eBooks, Best Books, Great Book Lists (including Christmas Books, Best Books 2016 etc.), Latest Arrivals and Latest Audiobooks. You can explore books from those categories and lists on home page or search by author or title to get the book what you want. This free e-book download site also offers several formats for one book, PDF, EPUB, Kindle and TXT. But, you need to register to achieve e-books free download.

Bookboon

If you are a student or business professional, Bookboon is the greatest place offering useful free e-books. It embraces learning books on various ranges, from language to IT, economics to natural sciences, personality development to social skills and more. Almost all books are in PDF format which is compatible with Kindle, iPhone, iPad and lots of e-book reader software. To download a free e-book from Bookboon, you need to give some information at first, like e-mail address, studying/working, professional/study program.

Besides above-mentioned best free e-books download sites, torrent sites also collect a large number of e-books in torrent format. You can probably find any book on those sites but also face security and copyright problem for e-books free download.

How to Download Free E-books to iPhone iPad

It is pretty easy to download a free e-book from online book libraries. Enter one book page. Some gives a download button to access to format list while some directly lists available formats. Select one format and the book will be downloaded automatically. If registration is required, do it!

Now, free e-books are downloaded to hard drive. Next step is to transfer them to iPhone iPad. Instead of iTunes, we highly recommend making full use of WinX MediaTrans, an easy-to-use iOS file transfer program capable of adding PDFs, EPUBs, audiobooks from computer to iPhone iPad with ease. It delivers a fast speed for batching transferring and will never make any data disappear from your devices. It is fully compatible with devices running on iOS 7.0 and later, including latest iPhone 7/Plus.

Please download and install WinX MediaTrans on your Windows (10) PC and follow the steps to transfer free e-books to iPhone iPad.

Step 1.Make sure that iTunes was installed (once) on your computer. Plug in your iPhone/iPad to PC. After launching WinX MediaTrans, main interface with function modules will appear.
We would like to ask you to prevent iTunes auto-syncing. Open iTunes and get Preferences from Edit menu. Hit Device and check "Prevent iPod, iPhones, and iPads from syncing automatically" option.

Step 2. Click Book module. A new page for e-books transfer appears. Hit Add Book button to important downloaded free e-books to this page. According to the format, e-books will be automatically assigned to Books (EPUB), PDFs and Audio Books category.

Step 3. Click Sync on the right bottom of this page to transfer e-books to iPhone iPad. If you don’t want to sync one or certain e-books, click "X" symbol on the right corner of each book cover to cancel transferring before hitting Sync button.

Source: https://www.winxdvd.com/ios-android-mobile/free-ebook-download-for-iphone-ipad.htm

Best 3 Video Converters for Mac of 2017 [Free Download & Review]

The limitation of Mac acceptable formats forces users to get help from video converter software to change incompatible video format to playable one on Mac. Besides, through video converter, we can perfectly upload camcorder recorded videos to SNS; play downloaded movie on various devices, compress video for delivering over network, import video to iDVD for disc burning and more.

How to get a great Mac video converter? Here, we will list 2017 top 3 video converter software for macOS Sierra or lower for your reference.

2017 Best 3 Video Converters for Mac

WinX HD Video Converter for Mac
Rating: ★★★★★
OS: Mac OS X Snow Leopard (10.6) to macOS Sierra
Developer: Digiarty Software

WinX HD Video Converter for Mac focuses on offering the easiest and fastest solution to convert videos on Mac. It embeds 370+ video and audio codecs to deliver a well support of almost all sorts of videos embracing MP4, AVI, WMV, MOV, MKV, M2TS, FLV, 3GP and more. It can simply change formats between standard videos as well as compress 1080P HD/4K/8K videos to be smaller while keeping high quality. Besides, it can help convert any video to iPhone, iPad, iPod, Apple TV, Android, Windows devices, PlayStation, Xbox etc, for a hassle-free playback. The preset device profiles will be continuously updated collecting newly-released gadgets. It can also extract audio tracks to MP3, FLAC, AAC, AC3, M4R (iPhone Ringtone) etc, with high fidelity from original video.

Additionally, it can free download online videos from 300+ sites, like YouTube, Dailymotion, Vevo, Vimeo, Metacafe; create photos slideshow video with background music; record screen and camera video; crop/trim/merge videos; add external subtitle/watermark and adjust parameters.

WinX HD Video Converter for Mac is concisely designed helping beginners master operation with ease. We believe that you will be shocked by the speedy conversion. With the help of hyper-threading tech, Multi-core utility and Hardware encoder support, it becomes the fastest Mac video converter, up to 5x faster than others in the market.

Wondeshare Video Converter Ultimate for Mac
Rating: ★★★★☆
OS: Mac OS X 10.6 – 10.10
Developer: Wondershare

Similar to WinX HD Video Converter for Mac, Wondershare Video Converter Ultimate for Mac is primarily featured to convert formats between common videos, HD/4K videos, online videos and audios. It support 159 formats containing general/HD formats and 3D formats (MP4, WMV, AVI, MKV and for YouTube). It also offers a direct way to convert videos to Apple/Samsung devices, game consoles and trending VR devices. In addition, this top video converter for Mac in 2017 integrates online video downloader, video editor, DVD converter/burner into one program, which can meet different requirements to handle various media files.

Wondershare Video Converter Ultimate for Mac brings a good user experience while multiple functions drive some users to get a guide to master manipulation. Although Wondershare Video Converter Ultimate for Mac is announced giving 30x faster conversion speed, results of our test indicate that it is a bit slower to convert a 1080P video to MP4 than WinX HD Video Converter for Mac on the same Mac computer. What satisfies us is that quality of output file is pretty good!

iMedia Converter Deluxe
Rating: ★★★★
OS: Mac OS X Lion (10.7) to macOS Sierra
Developer: iSkysoft

The last program listed on our "Top 3 Video Converters for Mac in 2017" chart is iMedia Converter Deluxe. Actually, it has the same primary feature with above two applications: "convert any video on Mac". What's difference is codec support. iMedia Converter Deluxe supports 150+ video, audio, DVD formats and involves into constant update to add new formats. It also allows users to convert video to iPhone, iPad, Apple TV, Samsung, HTC, Microsoft Lumia, Sony, Xbox and VR devices. Equipped with video downloading function, DVD toolkit and video editing options, iMedia Converter Deluxe is definitely a piece of versatile media software.

iMedia Converter Deluxe offers a 3-step solution to convert videos: Import > Select Output and Edit > Export. Along with the modern interface, even green-hands can fully understand how to perform this software. During conversion, it can maximally preserve original image/audio to get a resulting file without quality loss and grant a quite fast speed. But honestly, it fails to catch up with other two best Mac video converters on speed.

For full feature comparison of 2017 best 3 Mac video converters, please check: https://www.winxdvd.com/resource/best-3-video-converters-for-mac.htm

BEST URL Converter for PC/Mac

Why do we need URL converter? URL can lead netizens to access a movie, TV show, song or other information online. When we require getting desired media content off online with ideal formats for offline playback, further editing and more, URL converter can help us achieve what we want.

URL converter is a kind of program which can easily transfer URL to a video/audio file in various formats, such as MP4, MP3 and so on. How to get the best URL converter? It is inadvisable to randomly pick up one from Google results, while the URL converter introduced below is definitely the perfect choice.

What's the Best URL Converter?

WinX HD Video Converter Deluxe acts as a video converter as its name indicates. It can not only handle local videos but online videos, even songs. It integrates an online media downloader able to download videos/songs with URLs and then the encode/decode engine can change URL content from native format to new one meeting the needs. We highly recommend it due to the following reasons:

• User-friendly Interface
This WinX URL converter has a concise design. Clean interface and well-organized function buttons likes a brief instruction so that beginners can quickly learn how to operate it. We can also find a mini preview player on the main interface which will display content of the video or URL you want to convert.

• Versatile Features
Built-in 370+ video and audio codecs, WinX HD Video Converter Deluxe is capable of converting URL to MP4, MP3, MOV, AVI, WMV, WebM, etc. And, 410+ profiles for Apple, Android, Windows devices enables users to get the most compatible video/audio format with phones, tablets from URL for movable playback.

WinX HD Video Converter Deluxe is an all-in-one URL downloader and converter. It allows users to only download URL videos/songs without conversion. Depending on source, users can get 720P/1080P HD/4K/8K, 3D, 360, VR videos and MP3 music off 300+ sites.

Basic editing tools are offered to users for cropping, trimming and merging videos. Subtitles (.SRT) can be added if trying to convert a URL of foreign movie or TV show episode. Parameters are adjustable as well. Bit rate, frame rate, resolution, aspect ratio can be reassigned to get special effects of output.

• Fastest Speed & High Quality
WinX HD Video Converter Deluxe adopts several advanced technologies, including Hardware Encoder (Intel QSV, Nvidia CUDA/NVENC) Support, Hyper-threading and AMD 3DNow! Tech, which accelerate URL encoding/decoding speed and also make this URL converter become the fastest video converter.

Additionally, it uses High Quality Engine and "Yadif Double Frames" Deinterlacing Engine which can optimize image quality to output clearer video. And, it can keep hi-fi audio without quality loss.

• Stability
Actually, there are several great online URL converters offering a pretty convenient way to convert URL to MP4/MP3. On the other hand, they come with instability going to various errors now and then because of copyright or security issue. Recently, YouTube-mp3.org has been experiencing not working problem. Nobody knows when it will recover.

WinX HD Video Converter Deluxe is an application for PC/Mac and will never come across service error. It is solid and stable to guarantee a successful URL conversion process.

How to Convert URL to MP4/MP3 etc, with WinX HD Video Converter Deluxe

Beyond everything, download and install this best URL converter on your Windows (10) PC. If you are a Mac user, please switch to the Mac version.

Step 1. Download URL

Launch WinX HD Video Converter Deluxe and click YouTube URL button on navigation bar.

Copy and paste URL to address bar of pop-up window. Next, click Analyze button to load URL content information. If there is a video, title, duration and options varying from resolution, format, size and codec will be listed. Select one option and make sure Auto convert module is checked. Click OK to move to next step.

Tip: You can uncheck Auto convert for downloading URL only.

Step 2. Select Format You Want to Convert URL to

The Output Profile window appears. Select MP4 from General Profiles or MP3 from to Music category as output format. You can also change URL to other formats, like AVI, MOV, WebM, FLAC, M4R etc.

Step 3. Start Converting URL

Browse to set destination folder and then click RUN button to start converting URL to your desired format.

Source: https://www.winxdvd.com/resource/best-url-converter-for-pc-mac.htm

Top 3 iPhoto Alternatives for Windows (10) in 2016-2017

iPhoto is a system-attached picture management application for Mac OS X 10.1 to 10.10 which empowers users to import photos from digital cameras, USB drive, hard drive and other storage devices as well as organize, edit and share photos. It is replaced by Photos from OS X Yesomite 10.10.3. The new photo app is easier-to-use simplifying editing tools and integrates iCloud Photo Library for photo syncing from iDevices.

At present, iPhoto still owns a large number of users. iPhoto alternative for Windows turns to be a hot search for various reasons. One case like below:

"I can transfer everything from my old Mac to new Windows PC EXCEPT iPhoto. I've got thousands of photos, probably 100 albums sorted out in iPhoto. I've looked before but have never found a Windows based application that does similar photo management and organization. Does anyone have a suggestion?"

Here, we will round up the best 3 iPhoto alternatives for Windows (10) PC in 2016-2017 helping you manage photos with ease.

#1 iPhoto Alternative for Windows (10) - Adobe Photoshop Lightroom

Adobe Photoshop Ligthroom is designed as a professional picture organizer running on Windows and Mac. From version 6.4, it can compatible with Windows 10. And, the latest version 6.7 was available in September 2016 with the support of latest macOS Sierra.

Like iPhoto, Adobe Lightroom features viewing, managing and editing pictures in diverse formats, like common PNG, JPG, PSD and even camera raw formats. The built-in library is the place for image organization which enables you to import/export images, classify images into collections by metadata and more. If you wanna produce a better-looking photo, please move to Develop module. A bunch of tools can help you enhance pictures. Apart from basically cropping and straightening, tonal adjustments such as white balance, color saturation, tonal scale, exposure, clarity, brightness and so on are available. In addition, you can customize sharpness, reduce noise and remove red-eye for your photos. Additionally, it allows you to create photobooks/slideshow, print images and sync photos between your devices with Lightroom mobile app.

The abundant features make it top on the iPhoto alternative for Windows list. And, you need to pay $9.99/month for experiencing full version for this image organizer for PC.

#2 iPhoto Alternative for Windows (10) - Google Photos

Unlike desktop software, Google Photos is a cloud-based photo sharing service available on web, iOS/Android devices. It derives from Picasa, which is discontinued developing in March 2016 and the application Picasa Web Albums was retired two months later.

Although Google Photos mainly aims to back up photos and help access any photo across various platforms, computer, phone or tablet, it is qualified to be one of the best iPhoto alternatives for Windows because it integrates powerful image organizing and editing tools allowing users to manage uploaded pictures with ease. You can easily import pictures from hard drive or other storage devices to Google Photos and create a new album for gathering picture with same theme (for example travel) together. You are allowed to adjust aspect ratio, crop, rotate pictures, reassign value of light, color, vignette and apply color filters for pictures. Every image can be shared to Google+, Facebook and Twitter.

As a web service, Google Photos can be used on computers running on any operation system, Windows, Mac, Linux. It's completely free to use but turns to be useless without network. Compared with iPhoto and Adobe Photoshop Lightroom, it offers simpler editing functions which probably cannot meet requirements of advanced users.

#3 iPhoto Alternative for Windows (10) - Windows Photo Gallery

As other iPhoto alternatives for PC, Windows Photo Gallery is a photo manager app collected in Windows Essentials software suite available for Windows 7/8/10. However, a bad news had been announced that Windows Photo Gallery will stop supporting after January 10, 2017.

Windows Photo Gallery focuses on photos management and editing. It embeds a photo import tool enabling you to get images off camera onto computer. And the image viewer help you check any picture stored on hard drive or devices connected to computer. Windows Photo Gallery works great on photo tagging and allows you to add titles, rating and captions in order to get better organized images. Apart from basic editing functions, like resizing, cropping, ratting, red-eye reduction, it can help adjust exposure, shadows, highlight, sharpness as well as remove blemish and reduce noise for pictures. It also gives you an opportunity to share pretty photos to OneDrive, Flickr and Facebook. Windows Photo Gallery supports many photo formats, JPEG, PNG, BMP, Gif etc, but cannot handle camera raw files.

Windows Photo Gallery is free for download on Windows PC. General users can be satisfied with basic editing and sharing options while some users still hope more improvements on effects. Tip: Windows 10 pushed out Photos app available to view, import, edit and sync images which can be a replacement of Windows Photo Gallery after the retirement.

Bootom Line: All above top 3 iPhoto alternatives for Windows (10) can help you achieve photo organization and adjustment on PC. Adobe Photoshop Lightroom boasts rich editing functions while Google Photos shows an efficient solution for photo syncing. And, Windows Photo Gallery is seemingly the preferred choice for a beginner. Depending on your needs, choose the best one for you!

For more: https://www.winxdvd.com/ios-android-mobile/top-3-iphoto-alternatives-for-windows.htm

How to Unlock iPhone

When more and more dissatisfactions with current carrier for expensive charges, poor support and features etc, comes, we would like to unblock iPhone to get it SIM-free and switch to other carriers which can meet our requirements better. So, how to unlock iPhone?

It's quite OK to contact carriers who support unlocking helping you get an unlocked iPhone. On the other hand, there are a certain number of carriers in different countries not allowing users to unlock iPhone to contact-free. Considering two different instances, ways of iPhone unlock are varied. Here, follow us to get how to make your iPhone unlocked.

How to Unlock iPhone (7/7 Plus)

Way 1. Ask for Help from Carrier

First of all, you should be aware of whether your carrier offers unlocking or not. Some popular carriers in USA, like AT&T, T-Mobile, Verizon can assist you to unlock your iPhone if you have an eligible device meeting all requirements. >> Check Widewide iPhone Carrier Support and Features

Steps:
1. Follow the instruction given by your carrier to ask for an iPhone unlock. Some need you to fill a request form. Some may require you to download official unlock app. When your request is confirmed, your carrier will unlock your iPhone directly or send you an unlock number. If you get nothing several days later, contact your carrier again.

2. Once your iPhone is unlocked, remove the original SIM card and insert the new one. After that, set up your iPhone again. If you haven't gotten a new SIM card right now, you should backup iPhone and then reset to erase all content and settings of your iPhone. Later, restore iPhone from backup.

Notice: If you have a message telling that your SIM card is incompatible with the device in iTunes, please follow this guide to fix.
1. Restore iPhone to factory settings.
2. After confirming that your carrier indeed unlocks your iPhone, restore iPhone from backup.

Way 2. Try IMEI Unlock

Every iPhone has a unique IMEI number. Once the number is shown officially unlocked in Apple's database, your iPhone with this number will be whitelisted. Based on feedbacks, IMEI unblock technology is tested as almost 100% working. Most IMEI unlock services support all iPhone models including newest iPhone 7/7 Plus and no jailbreak or hacking is required. Also, iOS upgrade or iTunes syncing will not make your iPhone re-locked.

How to use IMEI unlock? At the beginning, you should know your iPhone IMEI number. There are many ways to find this number.

1. Dial *#06# with your iPhone and a 15-digital number will be given.
2. Connect your iPhone to computer. Open iTunes and select your device. Move to Summary. Pay attention to Phone Number and click it until IMEI number is shown.
3. Open Settings on iPhone. Click General > About and you will get this IMEI number.

The next step is to find a reliable IMEI unlock service. You can search iPhone IMEI unlock on ebay and pick out one referring to ratings, sales and reviews. And, iPhoneIMEI.net is recognized as one of the fastest and most effective unlocking methods. It can unblock iPhone from mainstream carriers in USA, Canada, Australia, Japan and some European countries. Most users give 5 stars and highly acclaim it as perfect solution to unlock any iPhone models.

Source: https://www.winxdvd.com/apple-iphone-blog/how-to-unlock-iphone.htm

10 Most Common macOS Sierra Problems & Troubleshooting Tips

Apple released its 2016 Mac OS named macOS Sierra on September 20 announcing smarter intelligence, greater performance and seamless work between Mac and devices. Free upgrade to macOS Sierra from OS X 10.7.5 or later is available. A part of Mac users have been experiencing this new system and encountering several problems before/after upgrade or installation. What're most common macOS Sierra problems? How to fix them? This article will help you find the answers.

1. macOS Sierra Download Problems

When upgrading to macOS Sierra, you may be given a message "An error has occurred" or "failed to download". If so, please follow the steps to retry download process.

• Delete existing macOS Sierra installer and then re-download it.
• Search the uncompleted "Install macOS Sierra" file with question mark from Launchpad and delete it.
• Reboot your Mac and redownload macOS Sierra.

If you are unable to download macOS Sierra and find it is shown "Downloaded" in the Mac App Stores, you are suggested to do like this:

Remove existing "Install macOS Sierra" files from Mac or connected hard drive because they are probably one of the beta or GM builds not full version. After that, go back to Mac App Store to get final version of macOS Sierra.

2. macOS Sierra Installation Problems

Due to interruption (for example disrupted internet connection) during download, a damaged Install macOS Sierra.app will be given stopping installation. In that case, you should delete this damaged installation app and download it again from the Mac App Store.

Another problem which frequently happens is that macOS Sierra freezes during installation. To fix it, try methods below:
• Disable or uninstall any antivirus software on Mac.
• If this problem remains after that, try to install macOS Sierra in Safe Mode.
First of all, make sure that the network situation is great. Next, press power button while holding down the Shift key to boot your Mac into Safe Mode. Now, install macOS Sierra again.

3. macOS Sierra Won't Start Problem after Installing/Upgrading

macOS Sierra is installed successfully but goes to a failing startup only with a grey screen. Well, you need to reset NVRAM and PRAM.
Restart your Mac and hold down Command, Option, P and R keys simultaneously. You will hear the startup chime twice. Release the keys when you hear the second sound to reset PRAM.

Also, some other troubleshooting tips can be used to solve this macOS Sierra problem.
• Reset SMC: Shut down Mac > unplug all cables > plug cables back a few minutes later > start up Mac.
• Boot Mac in Safe Mode. Restart Mac while holding down Shift. At least 9GB of free space is required.
• Remove all third party extensions, antivirus apps, PPTP VPN software.

4. macOS Sierra iTunes Problem

It's not unexpected that iTunes won't open or work after installing/upgrading your Mac to macOS Sierra. To solve this problem, you just need to install iTunes 12.5.1 or higher from Mac App Store. Please note that if you fail to update iTunes, download the latest version straight from Apple instead of updating from App Store.

Actually, iTunes receives a lot of complaints for its complicated operation, various bugs on syncing and more which driving some users to switch to iTunes alternatives. WinX MediaTrans Mac version, one of the best replacements of iTunes, offers a quite simple and reliable way to transfer files, including photos, videos, music, books, Voice Memos, ringtones, podcasts between Mac (OS Sierra) and iPhone, iPad, iPod. The Windows version with same functions is available for Windows 10 and lower versions.

5. macOS Sierra iCloud Problem

macOS Sierra will ask you to enable some of features depending on iCloud, for example Storage Optimization, iCloud Documents and Desktop during setup. You can confirm to use those features or skip. However, you may encounter the error message: "This Mac can't connect to iCloud because of a problem with…" which pops up constantly. How to stop this kind of iCloud error message?

• Open Apple menu and enter System Preferences.
• Select iCloud and Sign Out.
• Reboot Mac and open iCloud to access preference window.
• Sign in iCloud with your account again.

6. macOS Sierra Safari Problems

After installing/upgrading to macOS Sierra, Safari possibly goes to not working, for example not finding server, failing to load webpages, plug-ins issue. To make those troubles disappear, you can try the following ways:

• Check the situation of Wi-Fi or networking. Make sure the connection is no problem.
• Clear caches of Safari. Open Safari > Preference > Show Develop menu in menu bar > Develop > Empty Caches.
• Uninstall plug-ins. Safari 10 brings a new feature to disable plug-ins like Adobe Flash Player, Java, Silverlight, QuickTime and uses HTML5 to load content for a faster browsing experience.

7. macOS Sierra Apps Won't Open Problem

It's a pretty usual that you open an app but showing "damaged and can't be opened" on new installed macOS Sierra. This error may be caused by incompatibility problem. You can visit the app official site to check if it supports macOS Sierra or if a new Sierra-compatible version has been developed.

Solutions:
• Update the app to the latest vesiom.
• Uninstall the existing app and reinstall it.
• Clear cache. Open Finder and select "Go to Folder" from "Go" menu. And then, Enter ~/Library/Caches into text box. Next, remove data from every folder. Now, repeat the steps for /Library/Caches (without the ~ symbol)
• Reset PRAM by restarting Mac and holding down Command + Option + P + R
• Hold Command and Option keys when launching the error app if it still cannot be opened after using the above methods.

8. macOS Sierra Video Playback Problem

Some users experience a wired display when playing videos on Mac running OS Sierra. Rainbow colors, drop shadows or other UI elements appear on the screen. To reset SMC is the solution.

• For iMac

Shut download your iMac and disconnect the power cord from monitor. Reconnect the power cord 60 seconds later.

• For MacBook
Shut down your MacBook and plug in power adapter. Hold down Shift, Control, Option and the power button. Release key and the power adapter light will change color. Now, boot your MacBook.

9. macOS Sierra Wi-Fi Problem

Wi-Fi slow speed is an annoying problem after upgrading to macOS Sierra when causing long time to load an online page, download online resources. First of all, you should check situation of router and ISP to ensure if they provide a good internet connection. If there are no problems, you need to delete current Wi-Fi preferences.

• Open Finder and select Library from "Go" menu.
• Access to /Preferences/SystemConfiguration/ and delete files listed below:
com.apple.airport.preferences.plist
com.apple.network.identification.plist
com.apple.wifi.message-tracer.plist
NetworkInterfaces.plist
preferences.plist
• After that, restart your Mac and modem or router.

10. macOS Sierra Bluetooth Problem

The problem that bluetooth devices fail to connect to macOS Sierra computer is reported. That may be resulted from outdated bluetooth device. Following Bluetooth SIG, macOS Sierra only supports the latest protocols adhering SIG's standards.

To fix this bluetooth error, you should get an updated firmware of bluetooth device compatible with macOS Sierra. Otherwise, downgrade to Mac OS X El Capitan.

Source: https://www.winxdvd.com/resource/macos-sierra-problems-troubleshooting.htm