Windows 7 - Create and empty file having a defined size

April 2018

To create an empty file, having a defined size under Windows 7
  • Click on Start > cmd > Press CTRL + Shift + Enter to open it as Administrator
  • Enter the following command
  • fsutil file createnew [name_of_file.extension][size_in_bytes]

  • By default the file will be generated in the system32 folder.

If you want to create the file on your desktop simply add "C:\Desktop" to your command:
  • E.g: fsutil file createnew C:\Desktop\test.png 6400000
Published by aakai1056. Latest update on October 28, 2011 at 05:38 AM by aakai1056.
This document, titled "Windows 7 - Create and empty file having a defined size," is available under the Creative Commons license. Any copy, reuse, or modification of the content should be sufficiently credited to CCM (
Windows 7 - A shorcut to Remote System Properties
Windows 7 - Windows Installer has stopped working