My Windows 8.1 is fully updated but the update to reserve KB3035583 Windows 10 won't install. I get an error code, 80073712. I've looked around the internet to find a solution but I don't know what to do.
I tried to run the Windows Update Troubleshooter, no luck. Then I tried to run DISM.exe /Online /Cleanup-image /Scanhealth and /Restorehealth but that didn't work either.

Any help is appriciated 'cus I don't know what else to do