Why can't I activate Windows 8?

If you receive a message stating that Windows cannot be activated, here are a few reasons why it doesn't work, and some actions you can try to solve the problem.

may be used in the repair process or a different version of Windows product key.

If you've ever taken a computer repair shop or assembly and repair of computer friends there, in order to complete repairs may use other versions of Windows. Or, if the repair shop or your friend uses a different product key for your computer, the key may be blocked when the number of computers using the key is greater than the number of computers allowed under the Microsoft Software License Terms.

if Windows is activated before you transport the computer repair shop or a friend, please re-entered into the computer or the original copy of Windows that came with the product code may resolve the problem. You can also try to reinstall the original version of Windows.

a copy of Windows may have installed on your computer

more than if you have a copy of Windows and have it installed on multiple computers, the activation may not work, because the product density The key is already in use on another computer, or the number of computers using the product key is greater than the number of computers allowed under the Microsoft Software License Terms. In general, most Windows copies should follow the 1:1 rule, which means that a copy of Windows can only be installed on one computer.

If a computer is greater than the number of product keys Microsoft Software License Terms allow several computers, you will need to have purchased a computer for each product key to activate the computer.

pirated software

If you have a pirated copy of Windows is not published by Microsoft and authorized, the activation will not work, because Microsoft will not be in the computer's hardware profile and product density 25 characters A matching relationship is established between the keys.

Microsoft's How to Tell Web site can help you determine whether your copy of Windows is pirated version. If so, you may need to purchase a new copy of Windows. The number of second-hand computers computer



If you are buying a second-hand computer with Windows already installed, use the product key may be greater than the number of computers allowed by the Microsoft Software License Terms.

you may need to sell your second-hand computer dealer and ask for the original WindowsDVD product key. If you don't have the original DVD and product key, or if you try to use them but still can't activate, you may need to purchase a new key.