I recently upgraded our old computer from Windows XP to Windows 7 Professional. It wouldn't boot from the CD to install for some strange reason so I put the hard drive in my computer and installed it from there. After it installed, I put the HDD back into the old computer and tried to boot it. Everything works fine until it says "Starting Windows". After displaying that message for about 5 seconds it restarts and brings up the choice:
- Run diagnostics (recommended)
- Start Windows normally
If I choose to start normally, the same thing happens and it restarts again. If I run diagnostics it says the issue cannot be automatically repaired.
The strange thing is that it will boot perfectly fine on my computer (if I put the HDD in), but cannot boot on the old one. Also, the same Windows 7 works on my computer.