I boot my PC in safe mode and dicovered you can remove passwords ,...talk about a hugh secruity flaw. How can I prevent Safe Mode ? Is it possiable ? here is the flaw; 1. Boot the system using safemode. 2. Go into control panel. 3. Go into user accounts. 4. Pick a user who is an administrator and click on their icon. 5. Click on remove password. 6. Reboot the system in normal mode. 7. Click on the icon of the user who you removed the password.