..you can make a fairly good attempt at locking others out by using a BIOS password or a ScreenSaver password..
1. The BIOS password is set by using your BIOS setup key immediately after startup. (F1, F2, F10, Delete, or Escape) Once your in the BIOS settings, set a password in the "Security" section. DO NOT FORGET THE BIOS PASSWORD. It will then require a specific password before the computer boots.
2. The ScreenSaver password is one that I like. Follow the procedures in the link below to set one.
Setting Up A Screen Saver Password
Hope this helps.
My older brother is dumb, thinking he can take my SD cards and use my comp when im not looking, but I do know. Anyways I'm trying to password protect my desktop running Windows 98 SE but each time I start my comp and go through the log in, all i have to do is hit cancel and it still logs in. How do I stop dat and make sure he can never go on my desktop w/o my password just like on my XP laptop? Is there any programs that can put a password on my comp and make sure no one but me can access it?