Find your Windows 10/11 Product Key

https://www.completenoobs.com/noobs/Windows_10_Product_Key

Windows product key is a 25 character code used to activate Windows.

Find your Product Key

In the search bar, type cmd. Right-click Command Prompt and select Run as administrator.

In the command prompt, enter:

wmic path softwarelicensingservice get OA3xOriginalProductKey

Should return your 25 character product key:

OA3xOriginalProductKey
YXXXX-KXXXX-3XXXX-CXXXX-NXXXX

Make a backup, useful if reinstalling windows after distro hopping.