Formatting HDD while windows is on

IF u think u cannot format c drive when windows is running so try this & 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 a:\


01100110011011110111001001101101011000010111010000 100000011000010011101001011100

0010000000101111010100010010111101011000