@Kasper Johansen be careful with this... it assumes that the virtual disk attached is the last volume in the list '$profiles = (gci "path to vdisks" -recurse -Include .vhd,.vhdx).FullName foreach ($prof in $profiles) { "select vdisk file=`"$prof`"`r`nexpand vdisk maximum=40000`r`nattach vdisk" | diskpart $vol = (("list vol" | diskpart | select-string "volume" | select -last 1) -split "\s+")[2] "select vdisk file=`"$prof`"`r`nselect vol $vol`r`nextend" | diskpart "select vdisk file=`"$prof`"`r`ndetach vdisk" | diskpart }'