what was the stupidest thing you did to your first comp.

Left it outside in a thunder storm, while taking a bathroom break.

Didn't know how to work Wireless networks LOL

Took the whole thing apart then tried to put it back together....it didnt work :3

My first mistake is that I never got an Anti-Virus program ...
And it was a living nightmare ...
After that I'm scared for life by Computer Virus ...

It took me about 3 years before I realized how important it is to regularly maintain my computer ...

this^

Watching porn in it and then not deleting its history

I pissed off a guy who I didn't know was a hacker, and he made my computer life a living hell for about a week.

Accidentally downloading a trojan and actually letting it ''evaluate my computer for security problems''. Luckily I was able to restore it.

Partitioned it with third party partitioner.
Lost all data.
Cursed alot.
Reinstalled clean.

[size=12]Browser History. Enough said.[/h]

Well I kept hard shutting down to turn my desktop computer off and I somehow managed to get food stuck onto the motherboard. Looooong time ago, Keeping my laptop in good condition now.

Forcing my low end PC to play high end games
making it not last 5 months due to heat problems.

Had a hyundai 8080 and needed to format a floppy
Wasnt watching what is said and formatted the C drive
Yes it is possible to do that with a DOS machine

I accidentally downloaded a simple virus, it was just a script that turned the computer off, but it puts itself in the startup folder.

trying to copy system 32 to a flashdisk... it didn't make it so i deleted that folder..

next time i log on , it didn't started... lol

This happened back in the early 2ks, but somehow I was using the first Desktop we owned (we had upgraded and I kept the old one running Windows '95 for the games, Descent is an awesome game) annnnd Windows vanished. I had no internet (it was dial-up back then) and had only used software from legitimate companies. Turned it on, the desktop background came up and then about fifteen minutes later a message popped up: Windows cannot find windows.exe. Would you like to search for it?

...Yeah. To this day I have no idea what happened. On a "brighter" note, a week before Xmas a few years later I bought and installed a Sonic & Knuckles collection form Half Price Books onto that same machine. It started stuttering a bit with those games and others, so I gave it a ... love tap. Worked fine for a week aaannnnd then went FUBAR. And that Sonic & Knuckles stuff wouldn't run on our new Windows XP (or was it Windows ME?); it would only open in windowed mode and at stupidly fast speeds. :(

Using dial up internet for the first three years of having it

hmm lets see Turn off all the security , no firewalls no Virus protection absolutely nothing , browsed the web for 1 hour on hentai sites then it crashed and never booted again ..........

The good old hammering the monitor in the back when it doesn't work which led to its demise.