Troubleshooting
How to Troubleshoot Windows 11 Sleep, Wake, and Modern Standby Problems
Windows 11 waking by itself, refusing to sleep, or draining battery overnight? Use powercfg and SleepStudy to identify the real cause before changing settings.
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powercfg
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Windows guides
How to Check Laptop Battery Health with the Windows 11 Battery Report
Generate a Windows 11 battery report with powercfg and compare design capacity, full charge capacity, usage history, and estimated battery life.