Windows-XP-PC keeps waking up from stand-by mode without reason

My Windows-XP-PC keeps waking up from stand-by mode. Even if I power off my router to prevent any wake-on-LAN events. It will sleep for a couple of hours and then wake up without any reason. I have no events in my task scheduler.

 

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  Justo F. Damian replied on June 04, 2008 16:23

  Hey man, this question was up 15 days ago & no reply, could someone with an answer please answer. Please forgive me, but I'm really annoyed over this problem, I have spent at least 8 hours on this problem & don't know where else to turn. Question to the original sender, did you ever find out how to take care of this problem? Please reply back on this site.
  
  Thanks,
  JD
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  Helge replied on June 04, 2008 19:27

  A little help is setting Windows to switch to hibernation after 1 hour. Once my computer hibernates it does not wake up again. It hardly wakes up in the first hour in standby. If it does I set it to go to stand-by again after 10 minutes. Finally it always reaches hibernation. I also disabled all services which are not essential, especially the task scheduler. I uninstalled my anti-virus because I suspected it might wake up the computer for updates. Maybe you should also turn off the automatic Windows updates.

   

  
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  Helge replied on June 05, 2008 05:57

  And I also checked through the settings of the drivers of my hardware (inside Windows hardware manager), especially the network card and mouse. I set the network cards waking up setting to "Managed by OS" because I had the feeling that "Deactivated" made it wake up.
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  Marco K. replied on June 08, 2008 17:41

  This sounds like a "mouse problem". Ever tested to remove the mouse? Had a smiliar problem... til I found out that my stupid mouse was "moving" because of a cheap mouse pad.

   

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  Helge commented on June 09, 2008 08:06

  Thanks for your suggestion, but I can move my mouse as much as I want without waking up my PC. (Delete or Edit for 15 minutes)
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  Seth commented on November 04, 2008 17:26

  Now that is too funny lol. (Delete or Edit for 15 minutes)
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  Justo F. Damian replied on June 09, 2008 08:18

  It works, thanks Helge, you are a genius. I had three problems why my computer would not sleep & I got nowhere until I got past the first one, so I give a big thanks to you. Also thank you everyone else that replied.
  1. I had to go to power management of the network adapter/ethernet located in the device manager & check off "Allow the computer to tun off this device to save power" & uncheck the other boxes.
  2. I had to download a hot fix for an error
  http://support.microsoft.com/?kbid=90... because of the additional ram I
  added.
  3. Last I had to download program co2saver, this forced it to standby
  mode by selecting options, custom setting & check off force standby. Before installing program I was able to force standby through shut down, but when I tried to let it go to standby by itself, it was not be able to do it, but now it does with co2savor program. but I had to tweek it alittle. I found out that co2saver & OS system had to be the same time & it was, but when co2saver was shutdown, my OS system was not the same, it switched back to the old settings, so I adjusted my OS system in the power options & then started up co2saver & made sure c02saver was running in start up & it worked with no problems. Just a note, even with my mouse power option shut down, it still would not go to sleep until I added co2saver.
  
  I know the above sounds goofy, but I tested each item one at a time & this is the way it worked out, go figure. Why doesn't someone write a program that would check our system out & fix it.
  
  Thanks,
  JD
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  John replied on September 07, 2008 21:53

  I still have this unwanted waking problem, with both hibernation and standby, and I'm wondering if there's any way other than trial and error to determine which program, driver, or service is triggering a wake-up. I haven't found anything obviously relevant in the System Event viewer, e.g, but I don't really know what to look for or where, either.
  
  Similarly, is there any way to have Windows XP absolutely prohibit a wake-up except when the power button is pressed, etc.?

   

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  John commented on September 07, 2008 23:04

  I should add this my system sometimes wakes up within 5 minutes or even less after entering standby. (Delete or Edit for 15 minutes)
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  Matias replied on October 16, 2008 06:34

  John,
  In the command prompt, type powercfg -devicequery wake_armed and you will see a list of devices with "Allow this device to bring the computer out of standby" enabled. You can then disable it for each in Device Manager.
  
  Still wasn't enough to fix this for me, though...

   

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  John commented on October 23, 2008 01:27

  Same here--still broken. (answer to the wake_armed query: "NONE")
  
  This is an extremely frustrating problem--I really used to rely utterly on these capabilities to save a lot of time, time which is now being wasted repeatedly each day.
  
  I just can't believe there's no way to look at some log or other to see what actually caused the system to wake up. :( (Delete or Edit for 15 minutes)

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