Product activation for Windows – online & support telephone …
To activate Windows 7 by phone: Select the Start button , right-click Computer, select Properties, and then select Activate Windows now.
Activate Windows - Microsoft Support
Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.
Get help with Windows activation errors - Microsoft Support
See Activate Windows 7 or Windows 8.1 for info about activation of earlier versions of Windows. If you're having trouble activating Windows 11, follow these steps to fix activation errors: Confirm that your device is up to date and running Windows 11.
Find your Windows product key - Microsoft Support
Your product key is available through the web portal for your program. For more information, see Volume Activation for Windows 10. Locate your product key for Windows 7 or Windows 8.1. A product key is usually required when uninstalling or reinstalling Windows 7 or Windows 8.1.
Error message when you try to activate Windows 7 or Windows …
When you try to activate Windows 7 or Windows Vista, you may receive an error message that is accompanied by an error code and its description. This article will guide you through step-by-step methods to help you resolve your problem.
Using the Windows Activation troubleshooter - Microsoft Support
Learn how to use the Activation troubleshooter to resolve common activation issues in Windows.
Upgrade to Windows 10: FAQ - Microsoft Support
An upgrade moves your PC from a previous version of Windows—such as Windows 7 or Windows 8.1—to Windows 10. An upgrade can take place on your existing device, though Microsoft recommends using Windows 10 on a new PC to take advantage of the latest features and security improvements.
Reactivating Windows after a hardware change - Microsoft Support
Learn how to prepare your Windows device for a hardware change and find help reactivating Windows after a hardware change is complete.
Why can't I activate Windows? - Microsoft Support
Activate Windows 7 or 8.1. Find your Windows product key. Learn how to troubleshoot and resolve 'Windows can't be activated' error message.
Product keys for Windows - Microsoft Support
Windows 7 and Windows 8.1: Product keys can typically be found in the confirmation email you received after purchasing Windows or in the box Windows came in. Learn more about finding your Windows 7 or Windows 8.1 product key. Find your product key to activate Windows.