PC randomly waking itself from sleep

madindehead · 13 Jan 2011 at 07:27

I walked into my front room, to discover that my PC, which I had left in S3 sleep overnight, had somehow turned itself back on.

Anyone got any ideas as to what might cause this?

madindehead · 13 Jan 2011 at 08:01

All I can see from the Event Logs, is this:

Log Name: Application
Source: System Restore
Date: 13/01/2011 03:00:58
Event ID: 8194
Task Category: None
Level: Information
Keywords: Classic
User: N/A
Computer:
Description:
Successfully created restore point (Process = C:\Windows\system32\svchost.exe -k netsvcs; Description = Windows Update).

So, it seems because my PC had updates to install, it created a System Restore point around 3am. But surely that shouldn't be allowed to happen if it is in sleep mode?!

madindehead · 13 Jan 2011 at 14:19

Snakedoctor said:
Make sure wake on USB and wake on LAN is disabled in BIOS.

Will do. I think they may be enabled. Will have a check soon

madindehead · 13 Jan 2011 at 17:22

Ah yeah. That makes sense. So basically, with updates on, it will update even if it's in sleep. Will test again to make sure it doesn't do it again! Fixed now!

madindehead · 13 Jan 2011 at 19:16

Zap said:
Mine woke up last night to install updates + a restart and shut my virtual machines down in the process!

The other common cause of random wake ups are media centre scheduled tasks.

Glad to know that mine wasn't the only one