I know how to get Windows system uptime since last reboot in VBScript or C#, but how do you get system uptime in the last 24 hours? The machine could go down multiple times during this period.
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I know how to get Windows system uptime since last reboot in VBScript or C#, but how do you get system uptime in the last 24 hours? The machine could go down multiple times during this period.
Use the Event Logs. In the System logs, you should see event #6006 (source: EventLog) when the system goes down, and event #6009 (same source) when it comes back up. See KB article 196452 for more info (note that unexpected shutdowns–that is, crashes–will give event #6008 instead of #6006).
So if you run through all the events of the last 24 hours, your uptime is 24 hours minus all the time between the 6006 and the 6009 events.