Windows 11 Not Activated After a Motherboard Change or BIOS Update: How to Fix It
Windows 11 not activated after a motherboard change, BIOS update or reinstall? Fix it with the Activation troubleshooter, your product key or phone activation.
How to Activate Windows 11 Pro With a Product Key
Activate Windows 11 Pro with a product key during setup or in Settings > System > Activation, check your status, and fix common activation errors.
Windows 11 Pro OEM vs Retail License: Which Should You Buy?
Both keys install the same Windows 11 Pro. OEM costs less but stays on the first PC; Retail can move to a new PC. See which license fits your setup.