Windows 10: How to Find version of windows (like pro and home) using product key

someone please tell me how to find the version of windows(like windows 10 home or pro) by using the product key(lets take it as 1).


when activated on some other product key(lets take it as 2)

:)

 

Product key

Hi Megan,

A product key is used when activating a software.
To help us determine the appropriate troubleshooting steps that can resolve your concern, we'd like to ask the following questions:

• What product are you trying to activate?
• Are you looking for the product key to activate your Office application?
• Which version of Office are you trying to activate? To check this, you can perform the steps posted on this
  link.
• Are you looking for the product key to activate your Windows?

We look forward to your response.

 

how to retrieve my previous windows version product key

My laptop currently running windows pro, will it possible to get my licensed windows 10 Home version which was came pre-installed to my laptop with this oem key after clean install.

if yes suggest me step by step.

Thanks

 

Windows Product Key

A friend of mine has an all-in-one that came with Windows 8 pre-installed. He erased the original OS thinking he could install another version of Windows 8. One thing he encountered, that he didn't expect, the BIOS/UEFI has a password. So, basically he is locked out from installing another OS. His BIOS has the product key nestled inside. Is it possible to find out which version the product key belong to?