So I built a new computer and pulled the hard-drive out of my old computer. Because I thought two terabytes would be better than one. Booted it up and it got stuck in a boot loop. Because it thinks it's still an HP. So I tried to install Linux, linux works but can't play games. And I got a boot disc burned and flash drive for computer to try and put Windows on it so I can play games. However it won't let me. I even tried unplugging the old hard drive and I guess the info transferred over to the new hard drive. Any suggestions maybe wiping the hard drive somehow?Installation of Windows Clean you should be able to have it detect prior versions of Windows and tell it to delete them and install fresh. Where did this boot disc and flash drive come from. To me it seems as though your not using a original OEM disc for Windows installation.

Additionally the EULA of Windows is non transferable and so the COPY of Windows from your old computer isnt suppose to migrate to your newer build. Microsoft has deemed that the Windows OS is paired with whatever HARDWARE it was activated originally with so when the hardware dies its also the death of the Windows Key. Most legal way around this killing of Windows Key is to STICK with same motherboard when a system dies in which its a repaired computer so it doesnt break the EULA.

Have to be careful about what I talk about on this subject. Chat of how to get around this EULA to make it WORK is not permitted here. If a new build, your suppose to get a new copy of Windows for it according to Microsoft.  Well I got it from the Microsoft website to try a fresh install and then enter a product key. But it's not working.Sorry to say that you might have to buy another copy of Windows as for that OS is paired with the original computer according to the EULA.