how do you bypass a computer password with a flash drive?

I am trying to get on my brothers computer to pull a prank on him. The only problem is that i don't know his password. Any suggestions.

Comments

[greenbean2]

The simplest way that I can think of with a flash drive would be a visual basic script. Basically you would create a Brute Force attack. The script would work as long as this is for getting onto something on the computer, not getting into his profile. For getting into his profile I would use some good old cmd.  There are dozens of Instructables on that subject. Just search it. If you need anything to be more specific or have a questions, just ask.