Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Possible Duplicate:
Troubleshooting a Windows 7 PC that wouldn’t sleep

I recently started facing problem with the Sleep feature of Windows 7. Whenever I press the sleep button, it goes into sleep mode but soon after a second, it automatically turns on and shows the Login window.

Could someone point me what's happening in there?

share|improve this question

marked as duplicate by CharlieRB, Canadian Luke, Simon Sheehan, Karan, Oliver Salzburg Dec 15 '12 at 0:34

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

2 Answers 2

Run powercfg -devicequery wake_armed to see which devices can wake up the PC again. Now disable the ability to wake up.

share|improve this answer

Seems like one of your USB devices is randomly turning it on. Follow the first answer from the link provided by goblinbox. That explains how to fix the issue.

share|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.