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color of screen changed and computer hangs and sound beep continuos RRS feed

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    Hi I have problem in windows 7

    sometimes when i work in windows 7 excel sheet or open internet color  of screen changed and computer hang up

    and computer make beep sound continuous not stop until i shutdown the computer . this color changed of screen not made after windows 7 start up but randomly meaning after computer open one hour may be after 30 minutes

    How to solve problem and why this happen

    Sunday, September 27, 2015 8:07 AM

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    That sounds like a hardware problem, possibly overheating.  Is this a desktop or a laptop?   Start by looking at the information here -

    How to Tell If Your Computer is Overheating and What to Do About It

    http://www.howtogeek.com/174288/how-to-tell-if-your-computer-is-overheating-and-what-to-do-about-it/?PageSpeed=noscript

    Sunday, September 27, 2015 4:40 PM

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    can any one help me
    Sunday, September 27, 2015 8:56 AM
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    are the problem software or hardware
    Sunday, September 27, 2015 12:26 PM
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    That sounds like a hardware problem, possibly overheating.  Is this a desktop or a laptop?   Start by looking at the information here -

    How to Tell If Your Computer is Overheating and What to Do About It

    http://www.howtogeek.com/174288/how-to-tell-if-your-computer-is-overheating-and-what-to-do-about-it/?PageSpeed=noscript

    Sunday, September 27, 2015 4:40 PM
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    Thank you for reply

    it is desktop computer core i3

    rame 4 giga

    Sunday, September 27, 2015 5:34 PM
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    That makes it easier to check. If comfortable doing it, open the case and look for dust clogging especially in the heat sink.  Use compressed air, NOT a vacuum cleaner, to clean it if needed.
    • Proposed as answer by Charles_Wang_ Thursday, October 8, 2015 3:29 AM
    Sunday, September 27, 2015 8:32 PM