I have posted here before about my college student daughter giving her
desktop computer to my high-school student because the college student
got a MacBook Pro. The desktop was a local custom build PC. It has
Windows XP Pro OS.
Strange things are happening with the new computer. (The
Sounds like the BIOS is set to boot with external drive before the
internal drive. This is more of a feature than a bug as it might be
useful later for troubleshooting. I would just avoid booting with the
external powered up.
If you must check the BIOS most machines tell you as they boot up