You can click Start -> Settings -> Update & Security -> Activation to check if Windows is activated on the Activation page. Restarting the computer can solve many minor issues on your computer. You can restart your computer and try to activate Windows 10/11 again. 12 Tips to Fix Windows 11/10 Activation/Product Key Not Working Tip 1. Besides, you can find a professional data restore tool that can work on Windows PCs. If your Windows 11/10 activation key or product key is not working and you can’t activate Windows 10/11, you can try the tips below to see if they can help you fix the Windows 11/10 activation key not working issue. Professional Free PC Backup Software for Windows 10/11.Easy and Free Disk Partition Manager for Windows 11/10.Free Data Recovery Software for Windows 11/10.

12 Tips to Fix Windows 11/10 Activation/Product Key Not Working.To seek solutions for other computer problems, you may visit MiniTool News Center. If the activation key or product key is not working for activating your Windows OS, you can check the tips in this tutorial to see if they can help you fix the Windows 11/10 activation key not working issue.

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