i used to create virus on my school computer labs , a batch file with command to delete a critical windows file like ntldr.dll or somthing and restarts, then i

i used to create virus on my school computer labs , a batch file with command to delete a critical windows file like ntldr.dll or somthing and restarts, then i rename it to fifa or GTA and put an icon of the game as well. someone from any other class when using the computer think they got a new game and click on it and it won't boot again. yeah , i was a bad kid