Windows 10: If OEM Windows 7 home premium is deactivated, can I reactivate it ?

Hello I want to ask if my computer that runs Windows 7 home premium activated with OEM key then this key is deactivated. Can I reactivate that key after installing windows 7 pro OEM key Thanks in advance.

:)

 

Windows 7 Home Premium OEM $90.00

Windows 7 Home Premium OEM $90.00 was $110 bucks!

This is the full version of Windows 7 Home Premium. It's key features include Jump Lists that keep the things you use most right in front of you as well as it's desktop enhancements that allow you to snap windows to both sides to easily view both at the same time.

 

Want to replace my Windows 7

Hi All,

I suspect that my Windows 7 installed on my PC may not be genuine - I have taken steps to purchase a genuine version on Windows 7, and need some help to "convert" over.

I guess I need to somehow deactivate the current version of 7, and then reactivate with my genuine key. Does that sound correct, or is a different approach required? If so, can anyone offer me the best advice to do this?

Thanks.

 

Windows 7 Home Premium -> Professional Upgrade

Sorry for posting in this "old" topic but I also have a question regarding this problem:
I have a Windows 7 Home Premium Version 32 bit and I want to upgrade to Windows 7 Pro. The Home Premium was not a OEM version and now I wanted to buy a OEM Windows 7 Pro version which costs 30€. Is it possible to upgrade a non OEM version with a OEM version or is this not working?

Many thanks in advance!