Note: If you can’t locate your current Windows license key because you forgot to back up it or the sticker was removed, you can retrieve it by using ShowKeyPlus. To do so, you have to remove it from your PC and then use the same license key (in the sticker) to activate your Windows license again. The best way to resolve this error is to reactivate your Windows license. If you are a member of the Windows Insider Program, just uninstall the Windows product key, reboot your Windows computer and then log in again with your Insider account. If you also receive a message stating that Your Windows license will expire soon, You need to activate Windows in Settings on Windows 10 – but your Windows 10 is already activated – then here is the solution.
Fix your windows license will expire soon