Windows 10: Windows is not activated on my PC.

Hello my name is Harsh and I wanted to ask that how should I will be able to activate my windows. I have a non-genuine copy of windows and now it requires activation and I also don't have the product key with me. Please help me as soon as possible.And I also want to know that can I change the non-genuine copy of windows with the genuine one?

:)

 

My PC suddenly says its not activated

I wish I could hands-on your PC .... it's a bit difficult explaining stuff...

 

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

 

My PC suddenly says its not activated

So now I have a clean install and windows is activated, what are my steps to find out why my original windows install wasn’t activated......

I await instructions........

and apart from checking activation, I do everything else as per your suggestions......will in future check validated once a month.......