In Windows Insider Preview build 14371, Dona Sarkar and her Microsoft team introduced a new feature called Activation Troubleshooter for Windows 10. Activation Troubleshooter makes it easier to fix activation issues caused by Windows 10 installations.
To access the Activation Troubleshooter, you need to go to Settings > Update & Security > Activation and select Troubleshoot. Including Activation Troubleshooter on Windows 10 was based on user feedback by Windows Insiders that complained of activation issues on some devices after replacing hardware components, such as replacing the motherboard or hard drive.
The Activation Troubleshooter will be available officially as part of the Windows 10 Anniversary Update coming next month and is currently available for Windows Insiders with the new Preview build 14371.
Sarkar found that in some installations, users would have trouble using Windows 10 on their devices:
“For example – if your device has a digital license (formerly called “digital entitlement”) for Windows 10 Pro from a previously installed activated Windows 10 build but you accidentally re-installed Windows 10 Home on such a device, the troubleshooter will automatically guide you through upgrading to Windows 10 Pro and activate Windows.”