What is computer Virus? Make it in 20 sec only

Is your system getting slow, sometimes getting hanged. Open windows without your command. You may have a virus in your system. Virus? What is this virus?

According to Wikipedia:

“A computer virus is a type of malicious software that, when executed, replicates itself by modifying other computer programs and inserting its own code. When this replication succeeds, the affected areas are then said to be “infected” with a computer virus.”

These viruses can change your computer settings, delete your sensitive data and cause severe damage.

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Create a virus within 20 sec!

Yes, I am not telling a lie. After reading this post you can make a computer virus in 20 sec.

But first, let me be clear. It is not exactly a virus because I can not replicate itself.

Caution: It is a nearly harmless virus. It with only hang the system for one time until it runs again. Restarting the system will make everything normal. But it is for educational purposes only. Do not misuse it.

Let’s Get Started

  • Open notepad. You can do so by pressing ‘window key+ R’ then type ‘Notepad’ and press enter.
  • Now carefully type “%0|%0“.
  • Now save the file by pressing Ctrl+S.
  • Give it any name and add “.bat” extension in the end. I have used ‘virus.bat’. See below in the image for help.
  • Choose All files in Save as Type drop-down menu.

And your virus is ready. Have you noted the time? You can easily create this virus even within 15 seconds.

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How will it work?

It is not some malware or complicated virus. There are several types of viruses. This one is called Fork Bomb. It consumes the memory of your computer completely by repeating a process.

So, it is not going to delete any file or create a malfunction. It is just going to hang your system. In order to make everything normal, you have to force shut down your system. Once rebooted, everything will be normal again.

If you want to try it on your friend then just ask him a glass of water. You can easily create this virus within 15 sec (based on your speed).

Caution: Never do it again and again. Repeating the process several times may lead to some problem in computer because each time you have to force shutdown your system, and that is absolutely not good.

Read More: Issues Solved By Network Time Servers.

Make this more attractive.

When you save this virus, you can see a gear type icon on it. So no one would ever click on such suspicious things. Then what can you do to make them click?


  • Right-click on it.
  • Then click on create a shortcut.
  • Now a shortcut will be created. Hide the original somewhere else.
  • Right-click on the shortcut.
  • Click on properties.
  • Now click on change icon.
  • And choose any icon.

All done!

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