How to Crash my computer?

I'm looking for a way to deliberately crash my computer if someone tampers with it. i've got a lot of personal data on it and if it should fall into the wrong hands, that'd be the end of me. i've got a lot of security built into it but i want make it so that if someone starts messing with my computer's settings like passwords or starts deleting my files, my computer will crash itself. and please, no smart aleck comments.

thx, the_pilgrim

How to Crash my computer?auto protect

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How to Crash my computer?downloads

Are you talking about the Mission Impossible kind of Computer ? The one that will self destruct after it is exposed ?
are u from 4chan?

anyways...how about those programs that would restart ur pc the moment someone opens something (like anon opens my computer...then it restarts.)
set a bios password... encrypt your data using one of the various protection schemes.
Go here. It is what you are looking for:

http://pcworld.about.com/magazine/2406p0...
I dunno how or even if you can do that. Just password protect your PC (Start%26gt;Control Panel%26gt;User Accounts%26gt;Your account%26gt;Create password) Might not be a good idea to have all that personal info on there at all. And also crashing your PC might corrupt the data on there, same goes as if a virus gets in.
Ok this is how to crash ur buddy computer but u can do it on urs http://www.metacafe.com/watch/838289/how...
Sorry I just figured I can't help you. Well obviously you didn't mean that you were literally going to crash your computer.
lololol.. ever try a password? Mine's about 20 chars long, including symbols- it'd take a lifetime to brute force it.
None of the answers seem very good to me. What would a bios password do I ask? All they would have to do is take our your hard drive.

Think about this for a second. If someone was after you (bad guy from mission impossible) they would simply remove your hard drive when they got ahold of your computer, and copy the data to a blank drive. From there, they have an exact copy.

If you want to protect your information, you need encryption.

128 bit plus, with acceptable passwords. You can encrypt the entire hard drive partition, and then additionally individual files as well.

Make sure whatever program you are using, it securely erases memory and temp files of the decrypted / encrypted information.

But really, unless you are 007 himself... why?