Windows 10: re-activate OEM license?

I bought a new retail PC with a Windows 10 Home Licensc OEM. Then I bought a Windows Professional License separately and installed the license key, thus updating the PC to Windows Professional. If I would now remove the Professional license from the PC in order to install it on a different maschine VM, could I reactivate the original OEM license on that PC? Is it saved in Windows or completely overwritten?

:)

 

oem activation key

Right - especially if a newer board.

That said, if doing a re-install on a totally different motherboard, OEM licenses are not "legally" transferable.

 

Problem re-activating windows after hardware change

I recently changed my PC motherboard & cpu and i need to re-activate windows. Going through the steps in windows and using the troubleshooter > "I recently changed my hardware" > selecting my PC from list of devices, it never works. Error code 0xC004C003.
I bought a windows 10 OEM key and have seen generally you just need to call support to re-activate but none of the phone numbers they give me work (UK). Any advice or people I can contact is appreciated.

Thanks

 

Unable re-activate windows 10, from previous windows 7 oem

Hi Steve,

This is Wil, one of the independent advisor and an expert with Windows 10.

I understand your concern with activating Windows 10 using an OEM Windows 7.

Since you still have the product key for the old Windows 7 OEM, you may try the troubleshooting steps on the link below for you to be able to uninstall and install the product key using CMD.

https://www.maketecheasier.com/uninstall-window...

This is actually a Non-Microsoft website but the troubleshooting steps are relevant to your concern. I hope my suggestions help you. If you need further assistance please do reply back and I will respond as quickly as possible. Have a nice day.

Thanks,

Wilfred P.

Independent Advisor