Windows 10: Please help me fix my windows

A couple months back I had a guy build me a pc. I love it, it is very great but he got me a cracked version of windows which I do not remember talking to him about. Recently I got a notification saying my windows is about to expire, and when I asked him about it I learned it was a cracked copy, and I bough Windows home and installed it. However my Windows edition still says enterprise which is the cracked version. The notification keeps showing up about the Windows expiring, and when I try to change product key to the one I was given upon purchase, I get the following code:0xc004f050please hel

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windows xp installation and dual core am

could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx

 

help to remote connect

not sure how to use both programs u 2 suggested, i need more helpful steps thanks

 

i update bios then black screen ???? pls help me 980ti

@smoka Great you fixed it and would be interesting to know how you did it. Care to list the basic steps you took to do it so that it can help others stuck in the same situation?