Find out what wakes up your Windows 7/Vista from its sleep

@rem Get info about last wake
powercfg -lastwake

@rem Which device caused the wake up
powercfg -devicequery wake_armed

@rem More detailed info including time of sleep and wake
cmd /k wevtutil qe System /q:"*[System[Provider[@Name='Microsoft-Windows-Power-Troubleshooter']]]" /rd:true /c:1 /f:text

External Links

• http://www.cravingtech.com/fix-windows-vista7-sleep-mode-from-waking-up-by-itself.html
• http://jack.ukleja.com/fix-for-windows-7-random-wake-from-sleep-problem/
• http://www.sevenforums.com/tutorials/122012-lastwake-command.html
• http://www.xhroot.com/blog/2012/04/14/get-time-of-last-wake-from-sleep-in-windows7/
• http://windowssecrets.com/forums/showthread.php/132537-Windows-7-Wakes-From-Sleep
• http://www.vistax64.com/tutorials/63567-power-options-sleep-mode-problems.html