The following are some of the most common activation errors with possible solutions for Windows 11. If you're getting an error code that isn't listed on this page, contact customer support.

Learn how to use the Activation troubleshooter to resolve common activation issues in Windows.

Run the Windows 10 Activation Troubleshooter: select Start > Settings > Update & Security > Activation and then select Troubleshoot. Check if you have a paper copy of your Windows 25-character product …

Provides several workarounds to the Windows activation or validation error code 0x8004FE33 when you connect to the Internet through a proxy server that uses Basic authentication.

Windows 10 should automatically activate unless you made significant hardware changes (such as replacing the motherboard). For additional troubleshooting steps, please see Get help with Windows …

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

When you get a message that says Windows can't be activated, there are several possible reasons why. Select any of the following topics to see some typical reasons for activation difficulty, along with …

When you get a message that says Windows can't be activated, there are several possible reasons why. Select any of the following topics to see some typical reasons for activation difficulty, along with …

Describes a problem in which you receive an error message when you try to use the Windows Activation wizard to activate a copy of Windows Vista or Windows 7. Resolutions are provided.

The Microsoft 365 activation troubleshooter runs on Windows PCs and can help you identify and fix activation issues with Microsoft 365. Select the button below to start the Microsoft 365 activation …