Windows 10: Can I get my previous OEM key , If transfer the retail key to another pc ?

I have a OEM key of Windows 10 Home installed in my pc then I purchased a Windows 10 Pro Retail key And activated Windows with it. Now I want to know that does my windows get activate with OEM key Obviously after reinstalling Windows 10 Home if I will Transfer my retail key to another pc.

:)

 

Transferring Retail but keeping OEM key's installed?

I'm upgrading my laptop (Razer blade stealth) from the OEM windows 10 home, to the RETAIL version of windows 10 pro. I'm wondering if I take that RETAIL product key, and transfer it to a new computer (example, buying a new laptop), will the old laptop
still have the OEM windows 10 home product key installed after the transfer? Or will windows be illegitimate?

 

Can I Transfer an OEM Product Key to New PC?


I built a new PC and want to install windows 8.1. For this I need to buy a product key. I was told that OEM product keys are "married" to the motherboard for life.

But lets say I install win 8.1 and use an OEM product key yo activate it. And lets say in the future I get rid of the old motherboard and install a new motherboard. Will I be able to transfer the product key to the new motherboard? Or would I need a retail product key to transfer the key to a new PC or motherboard?

 

Upgrading a PC and Retail Keys

If I build a new PC and activate Windows 10 on it with my old Windows 8 key which was used on the old PC, will the old PC remain activated?