April 7 2016

Upgrade from Windows 8.1 Enterprise to Windows 10 Professional

I had a scenario where I needed to upgrade from Windows 8.1 Enterprise to Windows 10 Professional using the free Microsoft upgrade via Windows Update.  The free update usually doesn’t work on Enterprise versions of Windows 8.1.  To get this to work:

Open a command prompt with Administrator rights and run 4 commands to update the registry:

reg add "HKLM\Software\Microsoft\Windows NT\CurrentVersion" /v ProductName /d "Windows 8.1 Professional" /f
reg add "HKLM\Software\Microsoft\Windows NT\CurrentVersion" /v EditionID /d "Professional" /f

reg add "HKLM\Software\Wow6432Node\Microsoft\Windows NT\CurrentVersion" /v ProductName /d "Windows 8.1 Professional" /f
reg add "HKLM\Software\Wow6432Node\Microsoft\Windows NT\CurrentVersion" /v EditionID /d "Professional" /f

Then Check for Updates via Windows Update and KB3035583 appears.
After installing that update and running Check for Updates again, you will see the ‘Get Windows 10’ icon appear in the taskbar.

Follow the prompts and the machine will undertake a Windows 10 inplace upgrade with all your data intact.

In my scenario I found that once Windows 10 was up and running I needed to enter a valid Windows 10 product key for Windows to be able to activate.

 

 



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