Windows 10: windows 10 upgrade from 8.1 Problem

Hello,

ive tried upgrading through windows update - installation got to 100% then it rebooted back to 8.1 ....

Ive used the ISO creator and tried to upgrade - gets to 100% then says "installation failed"...

Ive disabled my nvidia video card - uninstalled antivirus - turned off firewall and still get "installation failed"

Ive tried changing the language settings to US and setting timezone ahead and still the same thing...

Can anyone suggest anything else? i do not know what the error is as it wont tell me.

My laptop has over 500gb of free space and its an i7 with 8gb ram.

Please help if you can......

:)

 

Reinstalled Windows 10 - lost Pro upgrade from 8.1 Pro Pack

I purchased a Windows 8.1 Pro Pack upgrade in 2014 from Amazon to upgrade my Windows 8.1 Home machine to Windows Pro. I changed the key and the OS was upgrade from 8.1 Home to 8.1 Pro without a problem. I then upgraded to Windows 10 last year and it successfully
upgraded to Windows 10 Pro.

Due to some driver issues, I was forced to reinstall Windows 10 from scratch on my PC, which I did from an ISO downloaded from Microsoft. I didn't enter a product key and it was automatically activated. The problem is that I no longer have Windows 10 Pro
but Windows 10 Home. I tried entering in my Windows 8.1 Pro key from my Amazon software library, and it says that it is the wrong version.

According to the Windows 10 upgrade matrix, a Windows 8.1 Pro machine can be upgraded to Windows 10 Pro. How do I get this to work? I don't want to reinstall Windows 8.1 on my machine. Wasn't the license upgraded behind the scenes?

 

Windows update log Error 0x80004005

I have the same problem on My Desktop which was upgraded from Windows 8.1 Pro. Update was not a problem on Laptop upgraded to Windows 10 from Windows 8.1. The error continues to occur on Windows 10.1Pro. Need a fix.