creating large test files on windows

Use fsutil

http://www.windows-commandline.com/2009/07/how-to-create-large-dummy-file.html

Powershell script

$file = Read-Host “Enter File Path”
$size = Read-Host “Enter File Size followed by MB or GB (Example: 10MB or 10GB)”
$objFile = [io.file]::Create($file)
$objFile.SetLength((Invoke-Expression $size))
$objFile.Close()
Write-Host “File Created: $file Size: $size”