Windows 10: Weather resetting my genuine windows 10 PC will require lisence key or activation key after...

My computer has become slow and also some i cannot find thefifferent options of touchpad in the settings.So i want to reset my pc. My pc is a genuine windows 10 pc. but i do not know the activation code or liscence key of it. Weather resetting my genuine windows 10 PC will require any lisence key or activation key after the computer has reset or will i loose my license?

:)

 

windows 10 key

Thanks but I don't want to do any decrypting. I want to download a Win 10 ISO from Microsoft and install it using my Win 8 key. No other steps required. Is that possible?

 

Windows 7 not genuine problem

It seems like that's an OEM windows copy, it will do that the every time you reinstall the OS. If you have the key, next time you see the "not genuine windows copy" click it and choose to activate by phone, everything else is pretty straight forward as it explains step-by-step. If it doesn't work, then its highly likely that you got a Pirate copy.

 

oem activation key

I have a window 10 os oem version. I want to do a fresh reinstall on my computer. Can I use the same activation key ( i used in the first place to get my pc up and running) if it has been used before.

Note: I will use the same cd and the key