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Can I monitor the system uptime of a Windows computer via WMI?



Is there a way to monitor the uptime of a Windows computer using WMI, just like there is the Uptime Sensor for SNMP?

custom-sensor prtg system-uptime wmi

Created on Mar 17, 2010 12:18:34 PM by  Volker Uffelmann [Paessler Support]

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Accepted Answer



This is very easy to achieve:

  • Create a file such as SystemUptime.wql in the Custom Sensors\WMI WQL scripts folder of your PRTG Probe installation.
  • Enter and save the following query into this file:
    Select SystemUpTime From Win32_PerfFormattedData_PerfOS_System
  • In PRTG: Add Sensor... / Custom Sensors / WMI Custom, then, in Step 2 select SystemUptime.wql from the WQL-File list.

The sensor now shows the system uptime in seconds.

For an understanding of how they are handled please see also our comprehensive article about WMI Custom Sensors.

Created on Mar 17, 2010 12:33:17 PM by  Volker Uffelmann [Paessler Support]

Last change on Mar 19, 2010 3:58:19 PM by  Volker Uffelmann [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.