Changing File formats of your Friends Machine

Hello Guyz, today we are going to teach you a very simple but very dangerous trick which you can try out in your friends system :P

>_What are we going to do : We will change some of the important file formats like( exe, cpl, bat, msc, mp3 , mp4 , flv or any other of ur choice) into txt format.

>_ What will happen : Whenever ur friend will open any file with the above mentioned extensions for example suppose if they open any video file of format mp4 it will open as notepad and they will never be able to play that.

So lets get started :

Step 1 : We need to access ur victims/friends machine at least for 10 minutes.

Step 2 : Type regedit.exe (registry) in run prompt of the victims machine.

Step 3 : Now you are on the Registry window -> Click on "HKEY_CLASSES_ROOT" and search for the extension you want to change. Here we are changing any executable file (.exe) to text file(.txt). Similarly you can also change of you own.

Step 4 : Click on the file format(.exe) -> On the right side their is "Default" -> Right click Modify -> It might be written as exefile change it to txtfile,similarly if u r changing any mp3 file change mp3file to txtfile. -> Click on OK and we are done.

Step 5 : Now try to open any .exe file(Here I tried opening Snipping tool), it will open in text file(Notepad). Enjoy !!!


Since we converted .exe file to .txt file now our Regedit, command prompt any of the applications will not open. Gone case right :P

There are 2 ways to recover it back. 

(a) Create a batch file ( file with extenstion .bat) and write regedit.exe inside that file. Double click on it ur registy will open again now you can change the format.

(b) Second option you have is Opening MMC console. Type MMC on search and double click ur mmc console will open -> Now click on File -> ADD Snap-ins

Any doubts ask below in comments :

Credits :- Amar Helloween & KIIT Hackers Team
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