Besides Windows 7 I have two copies of the same Ubuntu 10.04 on one partition on my laptop. How to uninstall one of them safely? Boot always with Ubuntu appears 1st by default.
did any of the solutions above work for you? Please let us know!
You won't have to reinstall Grub if Windows was your first partition, or if Ubuntu partition you are uninstalling wasn't the first. Simply boot from the LiveCD and go to System -> Administration -> GParted and delete the Ubuntu partition you don't want anymore.
use GParted from the LiveCD to delete it.