My PC wakes up right after it falls asleep.

My PC can't sleep. In the exact moment it enters into sleeping mode it wakes up.

What can I do to resolve this problem?

Thanks!

Disable allowing the mouse or LAN activity from waking it as one or the other of these is your likely culprit.

The mouse did all the problem. Solved.

Thanks.

Yip laser mouse sitting in cradle can still twitch and wake it up.

I disabled that and only let it wake by keyboard now.

How do you keep the mouse and keyboard from waking up the computer? Where do you disable?

Go to control panel/mouse/hardware/properties/change settings/power management. Unclick "allow mouse to wake up computer."

Same sequence with the keyboard. Just select keyboard rather than mouse in control panel obviously.

Hope this is as clear to you as I think it is.

The above may not be enough, look in Device Manager after that and see if the Mouse and Keyboard still say same after changing the above.

Good catch. I use my mouse to wake the computer so I've never used Control Panel to disable it. Just now tried it and, as you say, in device manager it was still checked to wake.

Good to know, if I can remember.

thank you both, the directions could not have been clearer. Now we'll see if the problem is solved.

question... if you disable both the mouse and keyboard from waking the machine up... how do you wake it up?