Windows 10: Windows activation page in Settings > Update & Security > Activation won't load

Hi, After upgrading my PC from Windows 10 pro to Windows 10 Enterprise, I noticed that windows kept on coming up with 'activate windows now' messages. It has never happened before. When I click activate windows, it brings me into settings - activation. However, it never finishes loading and I can never see the actual page. I have looked through many forums that seemed to have a similar question, but they were inconclusive. I have tried to run slui.exe, but nothing happens. I've also tried restarting and resetting my PC, save mode startup and even "sfc /scannow", still nothing. It either cras

:)

 

Windows activation . . .

In the Windows activation status page is it still showing as activated, or do you have something like 3 days to do it in?

 

CSM/Secure Boot BIOS setting change causes Windows 8 to de-activate

I have a Windows 8 BIOS (non-UEFI) installation on a motherboard with UEFI and Secure Boot support. The installation was running smooth for over a month until I was tinkering with the Secure Boot settings. I changed CSM from "enabled" (which lets it gel with non-UEFI devices) to "auto"; and although Secure Boot was disabled, it had some default platform keys loaded. I cleared those keys.

The following reboot took longer than usual, and to my horror, Windows was no longer activated. Activate by Internet doesn't work because I've used up my key across two motherboards (unlock limit), and Microsoft India support has a lazy Monday-to-Friday work week. Is there anything I can try in the meantime? I've tried setting CSM back to "enabled," and loaded whatever default Secure Boot keys the setup program had.

 

Windows 10 will not activate Error code 0x803F7001

thanks
I activated my Windows 10 from product key Windows 7