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Microsoft Windows 8.1 Professional 64 bit English International Pack online activation
Backup and Restore, the backup component of Windows that had been deprecated but was available in Windows 8 through a Control Panel applet called "Windows 7 File Recovery", is removed.
The update also removes the graphical user interface for the Windows System Assessment Tool, meaning that the Windows Experience Index is no longer displayed. The command line version of the tool remains available on the system.Microsoft reportedly removed the graphical Windows Experience Index in order to promote the idea that all kinds of hardware run Windows 8 equally well.
Windows 8.1 removes the ability of several Universal Windows Platform apps to act as "hubs" connecting similar services within a single interface:
The Photos app loses the ability to view photos from Facebook, Flickr or SkyDrive. Instead, each service provider is expected to create its own app;
The Messaging app, which was interoperable with Windows Live Messenger and Facebook Chat, is deprecated in favour of a Skype app that is not compatible with Facebook Chat;
The Calendar app can only connect to Microsoft services such as Outlook.com and Microsoft Exchange, with support for Google Calendar removed.
Beginning in October 2016, all future updates will become cumulative as with Windows 10; as such, downloading and installing updates that address individual problems would not be possible. Instead, upon installing Windows, users need only download a handful of updates as opposed to hundreds.
On April 8, 2014, Microsoft released the "Windows 8.1 Update", which included all past updates plus new features. It was unveiled by Microsoft vice president Joe Belfiore at Mobile World Congress on February 23, 2014, and detailed in full at Microsoft's Build conference on April 2. Belfiore noted that the update would lower the minimum system requirements for Windows, so it can be installed on devices with as little as 1 GB of RAM and 16 GB of storage. Unlike Windows 8.1 itself, this cumulative update is distributed through Windows Update, and must be installed in order to receive any further patches for Windows 8.1.
At the 2014 Build conference, during April, Microsoft's Terry Myerson unveiled further user interface changes for Windows 8.1, including the ability to run Metro-style apps inside desktop windows, and a revised Start menu, which creates a compromise between the Start menu design used by Windows 7 and the Start screen, by combining the application listing in the first column with a second that can be used to display app tiles. Myerson stated that these changes would occur in a future update, but did not elaborate further. Microsoft also unveiled a concept known as "Universal Windows apps", in which a Windows Runtime app can be ported to Windows Phone 8.1 and Xbox One while sharing a common codebase. While it does not entirely unify Windows' app ecosystem with that of Windows Phone, it will allow developers to synchronize data between versions of their app on each platform, and bundle access to Windows, Windows Phone, and Xbox One versions of an app in a single purchase.
Microsoft originally announced that users who did not install the update would not receive any other updates after May 13, 2014.However, meeting this deadline proved challenging: The ability to deploy Windows 8.1 Update through Windows Server Update Services (WSUS) was disabled shortly after its release following the discovery of a bug which affects the ability to use WSUS as a whole in certain server configurations. Microsoft later fixed the issue but users continued to report that the update may fail to install.Microsoft's attempt to fix the problem was ineffective, to the point that Microsoft pushed the support deadline further to June 30, 2014.On 16 May, Microsoft released additional updates to fix a problem of BSOD in the update.
Microsoft markets Windows 8.1 as an "update" for Windows 8, avoiding the term "upgrade."Microsoft's support lifecycle policy treats Windows 8.1 similar to previous service packs of Windows: It is part of Windows 8's support lifecycle, and upgrading to Windows 8.1 is required to maintain access to support and Windows updates after January 12, 2016.
Retail and OEM copies of Windows 8, Windows 8 Pro, and Windows RT can be upgraded through Windows Store free of charge. However, volume license customers, TechNet or MSDN subscribers and users of Windows 8 Enterprise must acquire standalone installation media for Windows 8.1 and install through the traditional Windows setup process, either as an in-place upgrade or clean install. This requires a Windows 8.1-specific product key.
Upgrading through Windows Store requires each machine to download an upgrade package as big as 2–3.6 GB. Unlike the traditional Windows service packs, the standalone installer, which could be downloaded once and installed as many times as needed, requires a Windows 8.1-specific product key.On July 1, 2014, acknowledging difficulties users may have had through the Windows Store update method, Microsoft began to phase in an automatic download process for Windows 8.1.
Windows 8 was re-issued at retail as Windows 8.1 alongside the online upgrade for those who did not currently own a Windows 8 license. Retail copies of Windows 8.1 contain "Full" licenses that can be installed on any computer, regardless of their existing operating system, unlike Windows 8 retail copies, which were only available at retail with upgrade licenses. Microsoft stated that the change was in response to customer feedback, and to allow more flexibility for users. Pricing for the retail copies of Windows 8.1 remained the same.
Windows 8.1 with Bing is a reduced-cost SKU of Windows 8.1 that was introduced by Microsoft in May 2014 in an effort to further encourage the production of low-cost Windows devices, whilst "driving end-user usage of Microsoft Services such as Bing and OneDrive". It is subsidized by Microsoft's Bing search engine, which is set as the default within Internet Explorer and cannot be changed by OEMs. However, this restriction does not apply to end-users, who can still change the default search engine freely. It is otherwise and functionally identical to the base version of Windows 8.1.
|Windows 8.1 Pro 64-bit System Requirements|
|Processor||1 Gigahertz or faster 64-bit (x64) with support for PAE, NX, and SSE2|
|Memory||2 Gigabyte (GB) RAM|
|Hard Disk||20 GB available space|
|Graphics card||Diretx 9 graphics device with WDDM 1.0 or higher|
Additional requirements to use certain features:
1 . To use touch, you need a tablet or a monitor that supports multitouch
2 . Microsoft account required for some features
3 . Some games and programs might require a graphics card compatible with DirectX 10 or higher for optimalperformance
4 . Watching DVDs requires separate playback software
5 . Windows Media Center license sold separately
6 . BitLocker To Go requires a USB flash drive
7 . BitLocker requires either Trusted Platform Module (TPM) 1.2 or a USB flash drive (Windows 8.1 Pro only)
8 . Client Hyper-V requires a 64-bit system with second level address translation (SLAT) capabilities and additional 2 GB of RAM (Windows 8.1 Pro only)
9 . Wi-Fi Direct Printing requires a Wi-Fi adapter that supports Wi-Fi Direct and a device that supports Wi-Fi Direct Printing
10 . To install a 64-bit OS on a 64-bit PC, your processor needs to support CMPXCHG16b, PrefetchW, and LAHF/SAHF
The New Windows
|Windows 8.1||Windows 8.1 Pro||Pro Pack|
|Your PC is currently running:||Windows 7, Windows 8||Windows 7, Windows 8||Windows 8, Windows 8.1|
|Great Apps built in such as Mail, Calendar, Messaging, Photos, and SkyDrive with many more available at Windows Store.||✔||✔||✔|
|Includes Internet Explorer 11 for fast, intuitive, touch-friendly browsing.||✔||✔||✔|
|Keeps you up-to-date and more secure with Windows Defender, Windows Firewall, and Windows Update.||✔||✔||✔|
|Works with new and existing Windows desktop software including the full Microsoft Office experience (Outlook, SharePoint Designer and more).*||✔||✔||✔|
|Comes with Windows Media Player||✔||✔||✔|
|Provides enhanced data protection using BitLocker technology to help keep your information secure||✔||✔|
|Enables you to connect to your PC when you’re on the go with Remote Desktop Connection.||✔||✔|
|Connects to you corporate or school network with Domain Join.||✔||✔|
|Watch and record live TV with Windows Media Center.||✔|