This is a very simple but helpful script that I created for our organization.  The vbs file enclosed is configured to write WSH events to the Windows Event Log if it detects available drive space on a local disk drive to be lower than 20%.  If the drive space is lower than 20% it will write a warning event with event ID 2 under source WSH to the Windows event log.  If the drive space is lower than 10% it will write an error event with event ID 1 under source WSH to the Windows Event Log.  You will have to customize the detailed message in the vbs file for your organization.  Our organization has email alerts generated to a ConnectWise board once these event IDs are detected.

Hope this is helpful,

Mark A. Villareal

Streamline Networks - http://www.streamlinenet.com/