Hello, I'm new to the site. So, I've kind of swapped hard drives before but now i'm in a bind. My hard drive was in an older computer (it's an old Micro Center PC). Now i'm trying to put it into another computer. The target computer is an HP 550-127c. I took that hard drive to another computer i'm currently using. So I popped it in and i get an error telling me windows failed to start and such. I ran system repair but no luck at all. I tried changing things in the bios for Legacy boot and that didn't work either. Nothing seems to be working at the moment. Any suggestions I should do before i just pop it back to the old one?