Setting permissions for PRTG to monitor WMI on systems is a bit of a chore. The script below sets the appropriate permissions for a lot of the WMI sensors in PRTG.

Run by using script.ps1 -Username "domain\user"

Please note that this needs ntrights.exe, which is included in the Windows Server 2003 Resource Kit

I may look in to making this a group policy script in the future but for starters this will do. It saves around 3-5 minutes of time per server, depending how fast you can click.