Disclaimer: We don't take responsibility for any ill fate that your computer might meet with.
It's the day, and what better than to give you -- on a platter -- all those tricks you're probably dying to play on your loved ones (not to mention your enemies). But be warned; we haven't tested these for viruses and other malware, so we suggest running a virus scan before you run them on any computer:
Install remote control software like Logmein or Gotomypc on yours as well as your friends PC. When he (or she) leaves the computer, log into the remote software so you can have all the fun when they're back -- controlling their mouse, opening Windows, typing gibberish, etc. etc.
On an older mechanical mouse, remove the ball from the computer's mouse or better still -- unplug the mouse and/or the keyboard from the back of the computer.
Stick a small piece of tape over the optical sensor of an optical mouse.
On your neighbour's computer, turn the speaker volume really loud and then walk away.
Try Flashing Images. You can flash any image on someone's screen for any period of time. That someone won't know what hit them, or did it?
Give someone a bad hair day with Crash. Bomb.exe can be set up with any computer application to simulate a program to crash exactly five seconds after it's been run.
Irritate the hell out of someone with Open CD. Your victim's computer's CD drive will open every time he/she tries launching a program.
Try this one: PrintMe. No matter which button you press, a fake print dialog screen will be displayed. Ten random files will be sent to the default printer.
With Shy Mouse, the mouse will shy away from most buttons (which includes the start button).
Try switching exclamations, question marks, other keys with Replace Keys
Try installing the 'BlueScreen of Death' screen-saver on a friend or foe's machine. It's available here. Just take care you don't download a virus as well.
Mac users, hold down ctrl, option, and apple keys, then push the number 8 -- the whole screen will turn on its head. Fun innit?
A simple yet effective number to play on someone -- if someone's left their computer with a Word file open, switch font color to White. They'll return to find their text 'invisible'.
With Vista Upgrade, the poor dude will think he's being upgraded to Vista. Try as he might, he won't be able to cancel the process. Only after clicking about five times will he know.
best april fool's joke would be to tell ppl to install Vista on a perfectly well running XP on the same machine. Microsoft really has a sense of humor.