Needing to generate random files on windows?  Try this powershell one liner….

1..100 | % { $out = new-object byte[] 1073741824; (new-object Random).NextBytes($out); [IO.File]::WriteAllBytes("s:\file$_.bin", $out) }

Generates 100 1G files of random data.

Not as easy as the old dd on linux.  But it works

Note:fsutil file createnew is no good as it created emtpy files

Create random files

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