Comment 3 for bug 306388

Reinstall Ubuntu from a CD and while doing that delete the whole hard disc drive (But everything is gone after that). Be sure to get the Ubuntu CD from an independent source.
Be sure to use really save passwords.

I hope this is a joke, and if so, then please stop doing things like this, we have better things to do. If this is no joke, then sorry. Are you sure that this could not be your brother or so who has physical access to your computer and maybe knows your password?