Activated Windows 8.1 professional OEM COA key sticker Original windows win7 OEM Key Lifetime Warranty

The Windows 8.1 from Microsoft brings the return of the Start button. While it is not quite the Start Menu from Windows 7, it still adds more functionality to the desktop. Right-click on the Start button to open up a menu with several options, such as Control Panel, Network Connections, Task Manager and more. For access to programs, a simple left click on the Start button will bring you to the redesigned Start screen introduced in Windows 8.1. Here, you can resize tiles to your preference.

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• Certificated Microsoft partner as a system builder,
• dedicated to OEM licences and original hardware to serve our customers 100% satisfied.
• 1 Year Guarantee and 100% Guarantee
• 24 HOURS Online Support and Free Technical Support
• 100% Guarantee onsale or aftersale

Just Contact us if you need to installing and activating your software.

All Version as Following: 

This prodct is a Lifetime License no monthly or annual fees.

• 1 Year Guarantee

• INSTANT Delivery via Emailpayment.

• 24 HOURS Online Support & Skype Telephone Support

• Money Back Guarantee: Contact us at any time for a replacement or a refund.

Requirements of Windows 8.1 Professional

• Required processor 1GHz processor or faster

• Required memory 1GB RAM for 32-bit; 2GB for 64-bit

• Required hard disk space Up to 20GB available hard disk space

• Required video card 800 x 600 screen resolution or higher. DirectX 9 graphics processor with WDDM driver

• Required connectivity Internet access (fees may apply)

• Other system requirements Microsoft account required for some features. Watching DVDs requires separate playback software

• Additional system requirements

• You must accept the enclosed License Terms, also at microsoft.com/useterms

• Activation required Single license 32 and 64-bits on USB 3.0 media inc