Someone physically pressed the button. While they may not have logged into Windows (password protection), they might have accessed the BIOS, booted from a USB drive, or attempted a password reset disk. This is a physical breach. Regularly reviewing off-hours startups is a basic, yet often ignored, physical security measure. The "PC On Off Time" is a treasure trove of data hiding in plain sight. You don't need expensive management software to track it. By mastering Event IDs 12, 6005, 6006, and 6008, you can diagnose hardware faults, secure your office against after-hours intrusion, and slash your electricity bill.
In the modern digital workspace, your computer is the command center. Whether you are a remote worker tracking billable hours, a parent monitoring a child’s screen time, or an IT manager auditing a fleet of office PCs, understanding exactly when your PC turns on and off is critical. PC On Off Time
systeminfo | find "System Boot Time" This returns the exact date and time your PC was last turned on. PowerShell allows you to query the event log historically. To view the last 5 shutdowns: Someone physically pressed the button
The phrase "PC On Off Time" refers to more than just pressing the power button. It encompasses system logs, startup/shutdown durations, scheduled tasks, and power management settings. By mastering your computer’s timeline, you can improve security, reduce electricity bills, extend hardware lifespan, and troubleshoot mysterious performance issues. Regularly reviewing off-hours startups is a basic, yet
Get-EventLog -LogName System -InstanceId 6006 | Select-Object -Property TimeGenerated -First 5 To view the last 5 startups: