Windows 10: lost win 10 pro upgrade key help

Hey guys, i had to do a full re install of my win 10 gaming rig, and I somehow thought that the win 10 upgrade key was stored in the BIOS, I bought the upgrade through the Win store on my pc on April 2 2019, I can not find the original email, only the confirmation number from Microsoft... I tried the online support app, but it was terrible no help at all... thanks in advance cheers Robert

:)

 

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?

 

How do I get the key for win 10 pro?

Hi,

I upgraded from win 10 home edition to win 10 pro. I had to reformat my computer with the factory image restore. It installed the win 10 but I did not have key to upgrade to pro. I have the following information from my Microsoft account. How do I get the
key for win 10 pro?

Here is my computer info where the win 10 pro got upgraded.

• DESKTOP-JP9JK4V
• Dell Inc. XPS 8900
  • Serial #: 3R8F082

Thanks!

Syed Ahsan

 

Can't upgrade from Windows 10 Home to Pro

Hi Bill,

Thank you for posting your query in Microsoft Community. We apologize for the inconvenience caused and will assist you in the best possible ways.

I suggest you to download and create an installation media for Windows 10 Pro form the link provided below:

Download Windows 10

After the installation media is created, suggest you to upgrade to Windows 10 Pro from the installation media. When the upgrade asks for product key, enter the product key purchased for Windows 10 Pro. If it does not accept, suggest you to skip the activation
step. After the Operating System is installed, suggest you to activate by phone by following the steps below:

• Press “Windows key + R” and type “slui 4” and press Enter.
• Select the Region from the list and click Next.
• Call the Toll-Free number provided on top and can activate via phone.

Hope this helps. Keep us posted on the status for further assistance.