Create a file of a certain size in Windows XP and later March 7, 2010March 7, 2010 ksbytescommand-line tools, create file, file size, script, utilities, WindowsLeave a comment fsutil file createnew [name of file] [size in bytes] e.g. fsutil file createnew c:\1gb.txt 1000000000 Create a file of a certain size in Windows XP and later