Question about Toshiba Satellite A135-S4527 Notebook

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Computer reboots after I shut down

I have a desktop computer. Now every time I try to shut down my computer it reboots, I'm not sure whats going on with my computer?

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  • gorsty64 Sep 22, 2008

    When using the shut down computer button in windows XP home edition the computer shuts down but instantly reboots its self. My computer ia a packard Bell and is 2 years old this has just started.

  • Anonymous Apr 06, 2009

    every time i try to shut down my hp through the windows menu.....it just reboots.....all i can do is hold the down the power button to shut the laptop down........what is causing this glitch??

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  • 17 Answers

Hi there...
              MMMMMmmmmmmmm can you be more specific ? has it recently started to do this or has it done this since you purchased the computer ? Are you trying to shut it down from the windows shutdown menu or are you pressing the power button to let windows shut it down ?? I Need more information before I can help you work out whats going on with your computer ...If its only just started to happen you may have a virus or a trojan infecting your system or your bios has become corrupted.The windows registry may have become corrupted or your power supply is faulty...the problems that could cause this are numerous , please be more specific about how you are shutting the computer down..
 

Posted on Sep 04, 2008

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    Software issue or error
    Errors generated by software programs can cause a computer to reboot unexpectedly or without warning. If you are running Windows XP see the below section "For Windows XP users" before continuing. If you are not running Windows XP or following the below steps still cause your computer to reboot without warning. Boot your computer into Safe Mode, and let the computer run in Safe Mode.

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    Windows XP is designed to automatically reboot each time an error occurs such as a BSoD. Although this may be nice for errors that do not occur often, users who have a re-occurring error may wish to identify the error to troubleshoot it. Below are the steps on how this feature can be disabled and enabled in Windows XP.
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    Any failing hardware component in your computer could cause your computer to unexpectedly generate an error and/or reboot without warning. If you have recently attempted to add a new hardware device, remove that device to make sure it is not causing your issues.
    Make sure you are not encountering any hardware conflicts by viewing Device Manager for errors.

    New drivers can also cause this issue, if you have recently performed any hardware driver updates you may wish to try an earlier version of the drivers.

    If you have updated drivers and removed any hardware that could be causing this issue and continue to experience random reboots, it's possible that the memory is bad in the computer.

    Finally, hardware devices that are not installed properly in the computer can also cause random reboots. Make sure all the cables and expansion cards are connected properly to the computer. The best way to determine this is to disconnect and reconnect all cables and expansion cards.
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    Heat related issue
    Many computer today are designed to turn off or automatically reboot if the computer, processor, or other device in your computer gets to hot. If you have heard any abnormal noises coming from your computer recently such as a high squealing this could indicate a fan may be failing in your computer.
    You can first start by verifying the fan on the power supply is working by examining the back of the computer and seeing if the fan is moving and moving smoothly. For all other fans in the computer you will need to either open the computer and make sure the fan are working (processor fan and case fan) and/or if your BIOS monitors the RPM of the fans enter BIOS and make sure the BIOS does not report any errors.
    Users may also be able to determine how hot their computer is by onboard thermal sensors, if your computer comes equipped with these sensors make sure your CPU is not running to hot.
    Issue with operating system
    If after following each of the above recommendations your computer still continues to reboot it is likely that you are experiencing a Microsoft Windows operating system related issue that cannot be explained. To help make sure this is the case please try the below steps.
    Reboot the computer and enter CMOS setup as the computer is booting.
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