Windows does not display a simple "total uptime" clock by default, but multiple built‑in tools provide this information.
Windows automatically logs power events, which can be viewed through built-in tools or specialized software. : The most reliable manual method. Search for "Event Viewer" in the Start menu. Navigate to Windows Logs > System . Filter for specific Event IDs: 6005 : The event log service started (System startup) [10]. 6006 : The event log service stopped (Clean shutdown) [10]. 6008 : Unexpected shutdown (e.g., power loss or crash) [10]. Third-Party Tools :
Have a tip or a strange on/off time anomaly not covered here? Share your event log story in the comments below.
is a lightweight, portable utility designed to track and display when your computer has been active over the last three weeks. It is a popular tool for both personal time management and digital forensic investigations. Key Features and Benefits
Then check powercfg -lastwake in CMD to find the culprit.
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