Want to make a prank computer virus for your friends? Well, this video tutorial will show you just how to make a fake virus on a PC. You'll need to open up Notepad to do this fake virus, and just type start eight times. Then just hit enter twice and type in hax.bat. Save the file as hax. Save it in your documents folder. When you open the MS-DOS Batch File, you won't be able to do anything but restart your computer.