[Nemesis]

Do a search through the registry for all things with CREATIVE, and delete each and every one.

Then do it again using the path where the creative stuff was installed.

Reboot and check that no creative stuff was loaded.

Then remove the Creative directories

If it bitches that it can't remove all files, search through the reg again using the file that can't be removed and delete that entry.

Once confident that it's all gone ... re-install.