XPS 8920, upgrading Windows 10 Home to Windows 10 Pro

You'll have to discuss this with Microsoft.

Hi, @cat0w 

Does this Microsoft Article help? 

I think that the important point is, to go from a pre-installed "10 Home" to "10 Pro" is that you need to buy a Digital License via the Windows Store (from within the Settings Feature of the Device that you want to upgrade), rather than obtain a Retail supplied Upgrade Key!

I would just download latest windows 10 from Microsoft and try to find an authentic Windows 7 Pro key from somewhere (lot of PCs have Win 7 Pro COA lying around).  Do a fresh clean install of Win 10.  Use the Windows 7 Pro key to activate Windows 10.

@redxps630 

Thank you, I have Windows 10 Home 20H2 and its working fine. I'll hang on to it and keeping trying the upgrade I bought from Microsoft Store and maybe one day it will work.

@John-Jay 

Thank you, that is what I did as I wrote in the second paragraph of my OP. I ended up with Windows 10 Enterprise and was not able to Activate that as it said I had the wrong Key.

I'll keep trying and maybe one day it will work and install the upgrade to Windows 10 Pro.

@redxps630  - I tried that on a Dell laptop which was running Win 7 Pro but Win 10 refused to accept the key and said it was "invalid".

Never got past that screen asking for a key...

The Windows 7 Pro keys that have helped me activate Windows 10 Pro installed in desktop are borrowed from COA stickers on multiple business desktop PCs.  In my experience most of the 10 year old Dell PCs sold to consumers have Windows 7 Home COA, not Pro.

I have not tried COA from laptop to use on desktop.  

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@redxps630 wrote:

The Windows 7 Pro keys that have helped me activate Windows 10 Pro installed in desktop are borrowed from COA stickers on multiple business desktop PCs.  In my experience most of the 10 year old Dell PCs sold to consumers have Windows 7 Home COA, not Pro.

I have not tried COA from laptop to use on desktop.  

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Your business PCs probably have a multi-user/PC license so those keys will work on multiple PCs.  I was using a laptop Win 7 Pro key in an attempt to upgrade to Win 10 Pro on the same laptop but the Win 10 installer wouldn't accept it. Never lets me get passed that first screen where it asks for the key so Win 10 never even loads on the HDD.

I never type in key at beginning of Windows 10 install. I always chose “I do not have a key” and let install proceed to finish.  Then I activate it later in my leisure as Window 10 not activated works almost as good as activated. You just cannot customize theme etc, no biggie.  For my clients I always activates it before delivery.  Once first time activation is done all future new hdd/ssd on same PC will enjoy automatic Win 10 activation on clean install as soon as being on line, provided cpu/motherboard stay unchanged.

I have also used desktop key to activate Windows 10 on multiple old personal laptops. Work like a charm.  It is possible that working keys from business pc are for multi-user.  I also found the Win 7 pro key on refurbished business Optiplex desktops work on personal desktops.