April Fools’ Day is the perfect time to have a little harmless fun with friends, family, or co-workers. If you’re looking to prank someone who spends a lot of time on their computer, Windows 11 offers plenty of opportunities. From harmless UI tweaks to downright confusing tricks, these pranks will leave your target scratching their head.

Before we dive in—remember, these are meant to be fun, not frustrating! Always make sure your pranks are easy to reverse and won’t cause any real issues. Now, let’s get into it!

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1. Flip Their Screen Upside Down

Want to give someone an instant headache? Flip their screen upside down with a simple keyboard shortcut:

Press Ctrl + Alt + Down Arrow to flip the display upside down.
To undo it, press Ctrl + Alt + Up Arrow.

This one is quick, easy, and guaranteed to get a reaction!

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2. Make the Mouse Move on Its Own

If your target leaves their computer unattended, you can make their mouse behave like it has a mind of its own:

Open Notepad and paste this:

Set wshShell = CreateObject("WScript.Shell")

Do WScript.Sleep 100

WshShell.SendKeys "{NUMLOCK}"

Loop

Save it as prank.vbs and run it.

This will make the Num Lock key toggle on and off, which causes some keyboards to beep and messes with typing. To stop the prank, just end the script in Task Manager.

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3. Change Their Cursor to a Loading Symbol

Make someone think their PC is constantly loading by changing their mouse cursor:

1. Go to Settings > Devices > Mouse > Additional Mouse Settings.
2. Click the “Pointers” tab and change the normal cursor to the “Working in Background” icon.
3. Apply & exit—now it looks like their PC is always thinking!

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4. Set Up an Endless Typing Loop

Make it seem like their keyboard is possessed by setting up an AutoHotkey script that repeatedly types a phrase:

Download AutoHotkey (if they already have it, even better!).

Create a new script and paste:

Loop

{

Send, Why is my computer doing this?!

Sleep, 2000

}

Save and run it.

Now their PC will type the phrase every few seconds, making them question everything.

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5. Swap Keyboard Keys Around

If you have access to their keyboard, physically remove and swap a few keycaps—especially common ones like “M” and “N” or “I” and “O.” On most mechanical keyboards, keycaps pop off easily, and the person will wonder why they keep mistyping!

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6. Auto-Correct Chaos in Microsoft Word

If they use Microsoft Word a lot, you can change their AutoCorrect settings to replace common words with something ridiculous:

1. Open Word and go to File > Options > Proofing > AutoCorrect Options.
2. Change “the” to “banana”, or “yes” to “I LOVE Windows Vista”.
3. Click OK and watch the chaos unfold.

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7. The Blue Screen of Death Screensaver

Make them think their PC has crashed with a fake BSOD screensaver:

1. Download the Blue Screen of Death (BSOD) screensaver online.
2. Install it and set it as the default screensaver.
3. When they leave their computer, it’ll look like their system has crashed!

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8. Change Their Desktop to a Screenshot

One of the simplest but most effective pranks:

1. Take a screenshot of their desktop (Win + PrtScn).
2. Set it as their wallpaper.
3. Hide all desktop icons (Right-click desktop > View > Uncheck "Show desktop icons").

Now, when they try clicking on anything, nothing will happen!

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Final Thoughts

April Fools’ Day pranks should be fun and harmless, so always be ready to undo them quickly. If your target gets too frustrated, make sure you reveal the joke before they start panicking!

Have you pulled off any hilarious tech pranks? Let us know in the comments!

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