Windows – Upgrade windows 8.1 to 8.1 enterprise

windows 8.1windows-8.1-upgrade

I'm trying to upgrade windows 8.1 to 8.1 enterprise with a product key from MSDN but it says my key is not valid when I use the "Add feature to windows" utility.

This key won't work. Check it and try again, or try a different key

Then I tried with the .ISO but I don't have the option the keep the installed apps. I have only the option to keep the personal files or nothing.

Then I found this question saying that you need to remove the language packs but it still doesn't work.

The current Windows display language is English (Canada) in the PC Settings.
I downloaded the Windows 8.1 enterprise update (English) .iso

There are English Uk and English but no English (Canada) on the MSDN download website.

I don't know if it could be the problem

Best Answer

You cannot perform an in-place upgrade from a plain-jane Windows 8.1 to 8.1 Enterprise; you need at least Windows 8 Pro.

From Microsoft's Windows 8 and Windows 8.1 Upgrade Paths:

You can upgrade to Windows 8.1 Enterprise (Volume License) from the following operating system editions:

• Windows 8 Pro
• Windows 8 Pro with Media Center
• Windows 8 Enterprise
• Windows 8.1 Pro
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