Computer Reboots Every Hour

My computer reboots its self every hour, on the hour. The first time I had this issue, I re-installed Windows 7 64bit because I wasn't sure of the copy given to me. It worked great for a few months and yesterday it started to do it again. I have sleep mode turned off, display will never turn off, also I have it so it doesn't automatically reboot, but it is almost as if I'm holding the power button to shut it off. The only warning I get is the power supply will rev up and just restart. If I could get any help, it would be greatly appreciated.

Critical    4/5/2011 8:51:27 AM    Kernel-Power    41    (63)
Critical    4/5/2011 7:51:37 AM    Kernel-Power    41    (63)
Critical    4/5/2011 6:51:19 AM    Kernel-Power    41    (63)
Critical    4/5/2011 5:51:02 AM    Kernel-Power    41    (63)
Critical    4/5/2011 4:50:45 AM    Kernel-Power    41    (63)
Critical    4/5/2011 3:50:27 AM    Kernel-Power    41    (63)
Critical    4/5/2011 2:50:08 AM    Kernel-Power    41    (63)
Critical    4/5/2011 1:49:50 AM    Kernel-Power    41    (63)
Critical    4/5/2011 12:49:32 AM    Kernel-Power    41    (63)
Critical    4/4/2011 11:49:15 PM    Kernel-Power    41    (63)
Critical    4/4/2011 10:48:58 PM    Kernel-Power    41    (63)
Critical    4/4/2011 9:48:39 PM    Kernel-Power    41    (63)
Critical    4/4/2011 8:48:21 PM    Kernel-Power    41    (63)
Critical    4/4/2011 7:48:01 PM    Kernel-Power    41    (63)
Critical    4/4/2011 6:47:44 PM    Kernel-Power    41    (63)
Critical    4/4/2011 5:47:26 PM    Kernel-Power    41    (63)
Critical    4/4/2011 4:47:08 PM    Kernel-Power    41    (63)
Critical    4/4/2011 3:46:46 PM    Kernel-Power    41    (63)
Critical    4/4/2011 2:46:33 PM    Kernel-Power    41    (63)
Critical    4/4/2011 1:46:16 PM    Kernel-Power    41    (63)
Critical    4/4/2011 12:45:58 PM    Kernel-Power    41    (63)
Critical    4/4/2011 11:45:44 AM    Kernel-Power    41    (63)

------------------------------------------------------------------

Log Name:      System
Source:        Microsoft-Windows-Kernel-Power
Date:          4/5/2011 8:51:27 AM
Event ID:      41
Task Category: (63)
Level:         Critical
Keywords:      (2)
User:          SYSTEM
Computer:      Tabby-PC
Description:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
    <EventID>41</EventID>
    <Version>2</Version>
    <Level>1</Level>
    <Task>63</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000002</Keywords>
    <TimeCreated SystemTime="2011-04-05T12:51:27.792821500Z" />
    <EventRecordID>8237</EventRecordID>
    <Correlation />
    <Execution ProcessID="4" ThreadID="8" />
    <Channel>System</Channel>
    <Computer>Tabby-PC</Computer>
    <Security UserID="S-1-5-18" />
  </System>
  <EventData>
    <Data Name="BugcheckCode">0</Data>
    <Data Name="BugcheckParameter1">0x0</Data>
    <Data Name="BugcheckParameter2">0x0</Data>
    <Data Name="BugcheckParameter3">0x0</Data>
    <Data Name="BugcheckParameter4">0x0</Data>
    <Data Name="SleepInProgress">false</Data>
    <Data Name="PowerButtonTimestamp">0</Data>
  </EventData>
</Event>

Answer
Answer

1 Check the times against the tasks in Task scheduler to see if the crashes are happening when one of them runs.

Type, scheduler into the Start menu search box, select Task scheduler, in the middle of the opening screen is Task status - use that to identify the tasks starting at the relevant times.  Look at any suspect tasks in its library in the left pane.  If it doesn't seem to be a necessary Windows function then disable it [select it then click Disable in the right-hand pane] to see if the symptoms go away.  Post the results here.

2 It could be an overheating problem so hopefully someone will post advice about that next.

3 It could be an infection but it's an odd one. 

Try*3 - a user
Dell Inspirons 7779, 1545, 9300; Windows 10 Home x64 & Pro x86; Office Pro 2007; HP DJ2540; HTC UPlay [Android 6.0], MyPhoneExplorer

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Answer
Answer

Heating issues - Read this link unexpected shutdown

To isolate a possible software fault then follow the recommended steps in Windows Explorer has stopped working [don't be put off by the title, it has a far wider applicability].

 

Try*3 - a user
Dell Inspirons 7779, 1545, 9300; Windows 10 Home x64 & Pro x86; Office Pro 2007; HP DJ2540; HTC UPlay [Android 6.0], MyPhoneExplorer

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Question Info


Last updated September 8, 2020 Views 7,193 Applies to: