Windows 8 and 8.1 Forums

Spontaneous awakening

  1. #1

    Posts : 220
    Windows 8.1 Pro X64

    Spontaneous awakening

    Occasionally my PC "wakes up" of its own accord.

    I assume such an event would be recorded and the info available via the event viewer but I don't have a clue where to look.

    Thanks in advance for any help or info.

      My System SpecsSystem Spec

  2. #2

    Posts : 21,865
    64-bit Windows 10
      My System SpecsSystem Spec

  3. #3

    Posts : 220
    Windows 8.1 Pro X64

    Hi again,

    Tried those but can't really see the culprit.
    Was also a bit confused by the fact that the timestamps were not local time.

    Here are the outputs:-

    C:\WINDOWS\system32>powercfg lastwake
    Wake History Count - 1
    Wake History [0]
    Wake Source Count - 0

    - System
    - Provider
    [ Name] Microsoft-Windows-Power-Troubleshooter
    [ Guid] {CDC05E28-C449-49C6-B9D2-88CF761644DF}
    EventID 1
    Version 2
    Level 4
    Task 0
    Opcode 0
    Keywords 0x8000000000000000
    - TimeCreated
    [ SystemTime] 2013-10-27T17:25:42.224793600Z
    EventRecordID 20995
    - Correlation
    [ ActivityID] {98C26769-5652-4CE7-B6F9-9280FE17C409}
    - Execution
    [ ProcessID] 1628
    [ ThreadID] 5792
    Channel System
    Computer Jim-PC
    - Security
    [ UserID] S-1-5-19
    - EventData
    SleepTime 2013-10-27T17:16:15.669149400Z
    WakeTime 2013-10-27T17:25:32.152450900Z
    SleepDuration 12766
    WakeDuration 652
    DriverInitDuration 494
    BiosInitDuration 1892
    HiberWriteDuration 0
    HiberReadDuration 0
    HiberPagesWritten 0
    Attributes 16640
    TargetState 4
    EffectiveState 4
    WakeSourceType 0
    WakeSourceTextLength 0
    WakeTimerOwnerLength 0
    WakeTimerContextLength 0
    NoMultiStageResumeReason 0
      My System SpecsSystem Spec

  4. #4

    Posts : 21,865
    64-bit Windows 10

    Does it wakeup at any particular time?

    Automatic Maintenance - Change Maintenance Settings in Windows 8

    You might also check to see if any devices (ex: network) are set to allow to wake PC.

    Devices - See Devices that are able to Wake Up the Computer - Windows 7 Help Forums
      My System SpecsSystem Spec

  5. #5

    Posts : 220
    Windows 8.1 Pro X64

    Quote Originally Posted by Brink View Post
    Does it wakeup at any particular time?
    It's sporadic.
    For example I put it into sleep mode this morning about 6:15 and it woke up about 6:25.

    I'll have a look at those two links.

    Thanks Shawn.
      My System SpecsSystem Spec

  6. #6

    Posts : 220
    Windows 8.1 Pro X64

    Maintenance was set for 3am.

    In addition to mouse and koybeard my NIC is allowed to wake PC.
    I had assumed that the wake from NIC would be restricted to the LAN, but I'm pretty sure nobody but me was awake at 6:25am.
    Although it is possible that number one son was doing things quietly for a change.

    Is it possible that WAN activity would cause a wakeup?
      My System SpecsSystem Spec

  7. #7

    Posts : 21,865
    64-bit Windows 10

    Yep, having your network adapter device set to allow to wake PC could cause it to randomly wake up. I'd recommend to turn that off to see if your PC continues to wake up.
      My System SpecsSystem Spec

  8. #8

    Posts : 220
    Windows 8.1 Pro X64

    Quote Originally Posted by Brink View Post
    Yep, having your network adapter device set to allow to wake PC could cause it to randomly wake up. I'd recommend to turn that off to see if your PC continues to wake up.

    Thanks again Shawn.
      My System SpecsSystem Spec

  9. #9

    Posts : 21,865
    64-bit Windows 10

      My System SpecsSystem Spec

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