1195. What is my Microsoft Windows 11 Product Key?

 To find out your product key should you need to reinstall do the following:

Start Key > enter REGEDIT and select it by right-click Administrator

Trace path as follows: HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CurrentVersion\SoftwareProtectionPlatform

Double-click SoftwareProtectionPlatform to display all files on right side

Double-click BackupProductKeyDefault to see 25-digit Product Key