Why doesn't my upgrade key work for Anytime Upgrade for Windows 7 Ultimate 64-bit?
It has worked two times earlier, but this time I receive this error message (I checked several times so I've entered the correct upgrade key):
"Enter a different upgrade key. The upgrade key you entered is for an edition of Windows that does not work with Windows Anytime Upgrade. Enter a different upgrade key."
I had some trouble earlier with the Dell mbr and the recovery partition which couldn't be used until I received a fix from Dell Support for it. Before that, this upgrade key has worked fine two times (upgraded very quickly).
I tried switching off all AV: MSE and Malwarebytes PRO. And also to switch off my VPN (tried with it also and used a server in the USA).