[tyvkiuiyi]

You can enter a password to reset it. But you can always just start Windows in safe mode and uninstall the app!

For real security Truecrypt your hard drive and store the key file on the USB key - in this case, do NOT lose the usb key!

[ciupicri]

Or even better, FreeOTFE (it's compatible with LUKS).

[tyvkiuiyi]

Thanks I hadn't seen that, although OTFE can't (yet) encrypt the system drive.