A PC has some build-in audio files that are played when doing something. For example, when you start navigating you’ll hear a “click” and when you disconnect a USB device you’ll hear another sound. Change these sounds into something that you want!
First, search on the internet for the correct audio file (Example: Farts, Screams etc.). If the file is in MP3 format, convert them to WAV. Save the WAV files to C:/WINDOWS/Media/.
Now go to Start > Settings > Control Panel and double click on “Sounds and Audio Devices”. Go to the tab Sounds and look for the correct sound in the list that you want to change. Change it by selecting the event and clicking on Browse… Navigate and select your new WAV file and press OK to save.
Be creative and your prank will succeed..