Has anyone else had activation issues after upgrading to Windows 11? My Windows 10 was properly activated, but now I'm getting a watermark saying "Windows is not activated" with error code 0x803F7001. The activation troubleshooter just says it can't activate on this device. I did the upgrade through the official Windows Update. Any ideas on how to fix this without a clean install?
Yeah this is common. I had this issue after my own upgrade. From what I've seen, running the Activation troubleshooter again but selecting the "I changed hardware on this device" option often works, even if you didn't. It usually reactivates using your digital license.