It is different from Registration, in the sense that, Activation is the process of ensuring that your copy of Windows is used according to the Microsoft Software License Terms, whereas registration is the process of entering information to sign up for product support, tools and tips, and other product benefits.
If Windows is not activated or if Windows detects the copy as a counterfeit, you may see the following message on your black desktop: Additionally, if you visit System Properties in Control Panel, you may also see the message: You must activate today. If you do not correct the issue, you will continue to get these reminder messages. Sure, you will be able to reset it, but every 60 minutes, but it will return to black until the issue is addressed.
Previously voluntary, it became mandatory for use of these services by July 2005.
Despite its name it does not actually evaluate the integrity or security of any computer.
Go online to and click "Validate" from the tab at the top of the page.The WGA validation process validates the present installation of Windows and its license key against the detected computer hardware and determines if the software was licensed from Microsoft.It is accessible by either a stand-alone program, a Netscape-compatible web browser plug-in, or as an Active X control within Internet Explorer, the latter of which is relevant to any attempt to access Microsoft updates via its browser.If this is the case, there is no short route to tackle the problem.So the genuine customer using a licensed Windows software should take preventive measures to avoid such a situation.Though you have legally bought a license for Windows, it may be due to the fact that someone else is using the same key (acquired it through some illegal method).