Windows 10: new fresh install of Win 11 Pro - but will not activate with my Win 10 Pro Product Key

Did a fresh install of Win 11 Pro after upgrading hardware using new motherboard, cpu, and hard drive. I am not able to activate Windows 11 using my valid Windows 10 Product key. Or keys - have 3 others not used and they won't work either although all are valid.Troubleshoot no help, these Win10 Pro keys not accessed from Microsoft account or registered on that account. Just need to activate using valid Win10 Pro product keys. Solution? Thank you.

:)

 

Win 10 Pro upgrade using Win 8 Pro product key

I just bought a new computer running Win 10 Home. When I went to upgrade to Win 10 Pro using my Win 8 Pro product key from my old computer, the upgrade wouldn't activate.

Now I'm stuck with a bunch of error messages (mainly 0xC004C003) and am being told windows isn't activated. I can't seem to get my activated Win 10 Home back.

I don't have a product key for the Win 10 Home because it came pre-installed. There's no product code recorded on the packaging or labelling on the device.

So:

How do I either

• activate the Win Pro upgrade, or
• Get my activated Win 10 home back?

 

Product Key of win 7 Pro works in win 10 Pro fresh install


I want to install windows 10 pro and win dev tools VS2015 Community...

on my MacBook Pro 4-cores/16GB/256GB

I have Windows 7 Pro license and VMWare Fusion Pro license

What to do???

Product Key of win 7 Pro works in win 10 Pro fresh install...as a VM? Or have to install win 7 pro and upgrade?

Users accounts in win 10 pro
a user can see by anyway other user files? Emails outlook, or passwords in chrome or robofirm password manager...?
to switcgph users needed shutdown... ? For user creation ms account is optional?

 

Win 10 pro activation

Hi. Simple question. Can I use the product key from a recently purchased version of win 10 pro to activate an already installed but needing activation version of Win 10 pro or do I have to install the new copy to use the new key?

Thanks