PowerShell for Windows Admins

Aug 5 2011   11:58AM GMT

Setting the drive letter

Richard Siddaway Richard Siddaway Profile: Richard Siddaway

I’ve been working on some WMI  functions for disks recently. First off setting the disk drive letter.

function set-driveletter {            
param (            
Get-WmiObject -Class Win32_Volume -ComputerName $computer -Filter "DriveLetter='$olddrive'" |             
Set-WmiInstance -Arguments @{DriveLetter=$newdrive}            

The difficult bit was getting the regular expression correct. It tests that we have a single letter and a colon.  The old and new drives are mandatory parameters

Simple call to Get-WmiObject and pipe to Set-WmiInstance.

Use it like this:

set-driveletter -olddrive z: -newdrive i:  


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