How can I up the ante on Windows User Security?

I'm trying to prevent access the computer via in person.

How can I up the ante on Windows User Security?computer repair

Use Kiosk software.

e.g. http://www.emailarms.com/products/intern...

Of course, this still won't protect you from malware that exploits the many bugs in Microwoft Windows...

How can I up the ante on Windows User Security?free antivirus

Change the local administrator password and the boot password as well. If you do all of this however, you had better not forget your password!
Install a removable hard drive bay.

When your not around the computer take the har drive with you.

Or

If your good in electronics install a power kill switch leading to the hard drive so it will not spin up.

Place switch in the back in a secret place.