A bit of an old system, 4 years(ish) later running into problems. The original problem was something to the degree of an error with the "boot sector" of the hard drive.. and I tried the same hard drive in another system with the same results, alas replaced that with a new hard drive. I used a different system to install Windows 7 on the new drive, then moved it over to the HP. The first boot appeared to work but led to an error screen and recommended either startup repair, or a restart. The restart led to the same screen, and startup repair always said it failed after letting it run. Occasional reboots would lead to freezing at the blue HP POST screen. Would it be rather safe to say a mobo replacement would be the next step? I understand a whole new PC would be the better option, but the money just isn't there.