Hi, @james smith
After reinstalling Windows 11, activation usually returns automatically if the laptop previously had an activated digital license and the same Windows edition was installed.
If it does not activate, the next step depends on the activation error, Windows edition, and whether any hardware was changed.
To help narrow down the issue:
- Go to Settings > System > Activation. What exact message or error code do you see?
- Does it show Windows 11 Home or Windows 11 Pro?
- Did you replace any hardware, especially the motherboard, or did you only reinstall Windows?
Click "Add comment" to let me know.
Thanks!