Ran makeboot.bat on my C drive: Need to fix (haven't shut down yet)

Yeah, the title pretty much says it all.
Followed the guide on pendrivelinux.com to make a bootable linux mint stick.
I'm running Vista, so got the error due to not running it as an admin.
Ran makeboot.bat as an admin, but the one stored on my C drive.
I saw it as it flashed on the screen, "Your C: drive should be bootable now"

I haven't shut down yet, so naturally no problem thus far.
Can I remedy this without my Vista disks? They're at home, and I'm at college.

System Restore seems to have worked, it's really quite a handy tool.