Windows 10: Will I lose my Windows 10 Pro license/activation after I reinstall the OS on a laptop that...

I have a laptop that was originally loaded with Windows 10 Home. Sometime after that, I bought a cheap Windows 10 Pro activation key online from some website not an official Microsoft one and used it to upgrade my system to Windows 10 Pro probably an OEM key, but it works tho'. Now I might need to reinstall the OS clean install. Will I have to reactivate my Windows 10 Pro license or will it automatically activate and I'll end up with a Pro system? Can I verify what will happen before doing a clean reinstall? Thanks!

:)

 

Can't move windows 10 pro license to new laptop

Hi!

I have laptop with windows 10 pro digital license connected with my Microsoft account. I bought new laptop and want to move my windows 10 license. I installed windows 10 pro. In activation options I choose Troubleshooting -> I changed hardware recently ->
choose my old laptop in list and get "Unable to activate windows" error without specific error code.

Is it possible to activate Windows 10 pro with digital license on new laptop?

 

License activation issue: Your windows license will expire soon

Windows 10 Activation reports your license will soon expire.

This can happen for a number of reasons:

• You copied a Windows 10 Pro off the Internet (usually a volume license - organization - key) and changed on a Windows 10 Home installation. Windows 10 Pro is not free. If this is what you did, you will need to reinstall the previous edition
  or version you were running. You inadvertently installed the wrong edition.
  • The copy of Windows 10 you download and upgrade from will correspond with the edition of Windows you have installed, if it does not, this is why you might be experiencing problems activating:

• Windows 7 Starter, Home Basic, Home Premium, Windows 8.0 Core, Windows 8.1 Core will install Windows 10 Home
  

• Windows 7 Professional, Windows 7 Ultimate, Windows 8.0 Pro, Windows 8.1 Pro will installWindows 10 Pro

If the edition of Windows 10 installed does not correspond with the edition of Windows 7 or Windows 8 you were previously running, then you need to reinstall the right edition.

Did you purchase the laptop brand new out of the box?

You might want to reinstall Windows 10 Home to resolve the problem.

Step 1: How
to download official Windows 10 ISO files

Step 2:

• How to: Perform a clean install of Windows 10

 

How to reinstall Windows 10 if my computers used the free upgrade from 7 and 8?

Will windows 10 still accept the license keys from 7 and 8 now if I reinstall my computer?

Does Microsoft keep a list of users who upgraded to Win 10 using their 7 and 8 keys so that when users need to reinstall windows 10 the old keys would work?

Do I need to call in Microsoft to ask them to activate my Windows 10 when I give them my win 7 keys?

Both computers are laptops. The windows 7 machine had the serial printed on the back, and I needed to enter that when I upgraded to 10. The windows 8 machine had the serial built in inside its boot system so I didn't need to enter the key when I upgraded to 10, but I did manage to write down the keys using a fetcher program.