Interpreting the results is straightforward: a sequence of followed by 6006 indicates a clean, intentional shutdown. If you see 6008 or 41 without a preceding 6006 , something unexpected caused the system to lose power or crash.
If your PC On Off Time exceeds these thresholds, you have a performance bottleneck.
Your PC might turn on at 2 AM due to scheduled tasks (Windows Update, maintenance). To stop this:
Open Task Scheduler , create a "Basic Task," set the trigger to "Daily" at your preferred time (e.g., 11:00 PM), and set the action to "Start a Program" with the script shutdown.exe and arguments /s /f /t 0 . PC On Off Time
((Get-CimInstance Win32_OperatingSystem).LastBootUpTime).ToLocalTime()
: The tool is not adware and does not modify files outside its own directory. How to Check PC On/Off Times Without Software
For a PC to turn on from a full Off state automatically: Interpreting the results is straightforward: a sequence of
: Investigators use it to quickly gather traces of system activity and create a computer activity timeline during an incident response. System Health
: Upon launching, the tool immediately displays a graph where colored bars represent the times your PC was powered on. Check Specific Times
If your "On Time" is slow, use Sleep instead of Shutdown. It saves your session state entirely. However, restarting (full on/off cycle) once a week is mandatory for Windows updates and clearing memory leaks. Your PC might turn on at 2 AM
To see how long the computer has been running since the last restart: Open (Ctrl+Shift+Esc). Go to the Performance tab. Look at Up time . Digital Forensics and On/Off Logs
Understanding PC On-Off Time: How to Track, Optimize, and Automate Your Computer’s Schedule
If you want to tailor this tracking system further, let me know: What are you currently running?