I did an install of Ubuntu 10.04 to an external USB drive which was successful. I chose the option to write GRUB to this external drive thinking it would not affect my Windows 7 boot drive.
It did, when I try to boot I get a GRUB error:
error: no such disk
Any ideas how to fix the Windows startup disk? I'm not planning to use the USB drive on this PC but send it to a friend who would like to use the USB drive to boot and run Ubuntu on his laptop,