Windows 7 suddenly and unexpectedly goes into sleep mode


  1. tomstep11
    Posts : 2
    Windows 7 Ultimate x32
       New #1

    Windows 7 suddenly and unexpectedly goes into sleep mode


    I am using a Lenovo Thinkpad running Windows 7 Ultimate x32 to operate an astronomical observatory. This requires running a range of software simultaneously. On several occassions, my computer has gone into sleep mode and will not respond to waking requiring a hard shutdown and reboot. This introduces a host of registry errors and stops any astrophotography. I have looked into Event Viewer and all I get is the following entry:

    The system is entering sleep.
    Sleep Reason: Application API

    Why is this happening? What can I do about it?

      My Computer
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  3. tomstep11
    Posts : 2
    Windows 7 Ultimate x32
    Thread Starter
       New #2

    I can add that the cause appears to be "Event 42, Kernel-Power".
      My Computer
    Quote Quote

 

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