how to crte a Raw file[,doc,jpg..etc] of any size with command prompt

crte file with any size
1. goto run >type CMD [run as administrator],
2. now after openin cmd prompt you have to type a simple command:

"fsutil file crtenew [filename] [size]" without quotes
for example : i want crte file . with size 1gb.
so command is
fsutil file crtenew abc. 1000000000
3.now press enter it will give u the loion of file, which is c:\\system32.