Activation and Validation
If you are certain that your copy of Windows 7 is retail and genuine Microsoft software but you keep receiving a message that it is not, check to be sure it has been activated. Click the Start button and type System into the Instant Search box. Select System under Control Panel in the results list. Scroll to the bottom of the System window. Under Windows Activation you can see whether your copy of Windows 7 has been activated.
There will be an Activate Windows Now link if your copy of Windows 7 has not been activated. Provided the product ID is listed or you have the Windows 7 CD with the product key, click the link and choose Activate Windows Online Now. Once the activation is complete, you should no longer receive messages that your copy of Windows 7 is not genuine.
If you do not have the product key and Windows 7 has not been activated, you can do so by phone. Click Start, type slui.exe 4 into the Instant Search box and press Enter. Windows Activation will open. Select the location nearest to you and click Next. Call the phone number provided and follow the phone system instructions to receive an activation key. Enter the key and finish the wizard.
One way to check your Microsoft software is by reviewing the Certificate of Authenticity. Read Certificate Of Authenticity for Microsoft Word to find out more.
You can also have your copy of Windows 7 instantly validated to ensure that it is a genuine retail copy. Visit the Genuine Microsoft Software Validation page and click the Validate Windows button. You will learn instantly if your copy of Windows 7 is retail and genuine Microsoft software or not. Even if your copy of Windows 7 is not genuine Microsoft software, you may be able to upgrade to a genuine retail copy.