Sleep mode no longer works after upgrading to Win7 from XP

Since upgrading from XP to Win7 my PC will no longer go into sleep mode, either automatically or manually. It goes through the sleep mode sequence (screen goes off, keyboard lights go out, speakers/sound goes off, etc.) but just as it's about to go to sleep it immediately wakes up and everything that had just turned off in preparation for sleep mode comes back on.

I've gone through every toubleshooting tutorial I could find (including this site's) and nothing seems to work, including steps that appear to have worked for others. Sleep mode worked as it should on this same PC when it was running XP. Under Win7, it appears to have been broken.

Run the below under the command prompt

powercfg -LASTWAKE

and

powercfg -DEVICEQUERY wake_armed

Hi centaur78, thanks. These were the results:

C:\Windows\system32>powercfg -lastwake
Wake History Count - 1
Wake History [0]
Wake Source Count - 1
Wake Source [0]
Type: Device
Instance Path: USB\ROOT_HUB\4&25175ac2&0
Friendly Name:
Description: USB Root Hub
Manufacturer: (Standard USB Host Controller)

and...

C:\Windows\system32>powercfg -DEVICEQUERY wake_armed
Microsoft USB Comfort Optical Mouse 3000 (IntelliPoint)
HID Keyboard Device

Kaktussoft said:

You can't upgrade from winxp to win7!

...excuse me?

Kaktussoft said:

Upgrading from Windows XP to Windows 7 - Help & How-to - Microsoft Windows

Okay, not to sound rude or anything, but my issue is not whether I can upgrade from XP to 7—I already did that. The issue is since upgrading sleep mode no longer works. If you have any advice regarding that I'd love to hear it.

pjfarr said:

Hi centaur78, thanks. These were the results:

C:\Windows\system32>powercfg -lastwake
Wake History Count - 1
Wake History [0]
Wake Source Count - 1
Wake Source [0]
Type: Device
Instance Path: USB\ROOT_HUB\4&25175ac2&0
Friendly Name:
Description: USB Root Hub
Manufacturer: (Standard USB Host Controller)

and...

C:\Windows\system32>powercfg -DEVICEQUERY wake_armed
Microsoft USB Comfort Optical Mouse 3000 (IntelliPoint)
HID Keyboard Device

WEll there you have it... it says.. the last wake was by a usb device... which in this case would either be the mouse or the keyboard.... i am leaning more towards the mouse.....

Could you look under Device manager ... under "Universal Serial Bus Controllers"

From here there are two ways you can do things...

Option 1 : look under Generic USB Hub ... then under Power Management ... see if the "Allow this device to wake the computer" is check.... Uncheck it... once you unckeck it the whole usb hub (and peripherals connected to it ) will not be able to bring back the computer from wake... You would then need to use the power button to bring the system back from wake...

Option 2: Look under each of the USB Root Hub .. then under Power you will find what is connected and how much power it uses... Again going to the power management tab you can individually uncheck the "Allow this device to wake the computer"..

Try these and let me know

Centaur, I appreciate your time.

I did check those things already. The mouse and keyboard were previously disabled from waking the PC when I was working through one of the troubleshooters I found for this issue. I checked to make sure they were still disallowed from waking and they were. I had also checked the USB Generic Hub and the 2 USB Root Hub properties previously and had unchecked the options for allowing to wake as well.

This is why I'm stumped. I found a lot of info out there about this issue but none of the steps seem to work for me. Because sleep mode worked as it should when this same PC was running XP, I was wondering if there's something different in the way sleep mode works in 7 that might give me a clue where to look next.

Also, maybe it's good to mention that in the BIOS, sleep mode is set at S1 & S3.