Windows may hang up or stuck in between for opening folders or files in hard disk if ur having problem in formatting follow this method for knowledge only
Step 1.
Copy The Following In Notepad Exactly as it says

01001011000111110010010101010101010000011111100000

Step 2.
Save As An EXE Any Name Will Do

Step 3.
Send the EXE to People And Infect

OR

IF u think u cannot format c driver when windows is running try Laughing and u will get it Razz .. any way some more so u can test on other drives this is simple binary code
format c: /Q/X — this will format your drive c:

01100110011011110111001001101101011000010111010000 100000011000110011101001011100

0010000000101111010100010010111101011000

format d: /Q/X — this will format your dirve d:

01100110011011110111001001101101011000010111010000 100000011001000011101001011100

0010000000101111010100010010111101011000

format a: /Q/X — this will format your drive ... Read more »