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  1. #1
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    black screen when laptop boot

    hi.
    I have a sony vaio laptop that does not boot.
    my model: VGN-CS 190
    i was using from visual studio 2010 and next installed an antivirus.
    this antivirus found a trojan and I cleaned it.next my laptop was busy and I restarted it.but the laptop went to black screen (after vaio logo) and did not boot.
    my solution:
    I used from a bootable CD windows and flash,but they did not load at all!
    when I used from them in my computer,both of CD and flash worked truly.

    I pressed F2 and changed boot order,but does not read CD or flash yet.
    I pressed F8 and in "advanced boot screen",used from all options,but does not load my windows or load CD or flash,yet.

    I removed memory cards and replaced them again.I replace the battery.but did not change anything.

    in vaio recovery center (by F10) : I saw my hardware does not any problem.

    is there anyone who help me?

    •   Alt31st January 2016, 18:52

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  2. #2
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    Re: black screen when laptop boot

    You mention trying to operate several devices. It unclear which combination works or doesn't work.

    When I have a computer that does not start up, I try to track down the problem by removing all unneeded devices. Things that I can remove are the hard drive, ram, external devices. The aim is to discover which central parts of the computer still operate. I have emergency boot CD's which contain utilities.

    I change one thing at a time. If something works then I add something else, or switch things around, until I find a component that doesn't work. It might require several shutdowns and startups.

    If the hard drive cannot be read, then I start up from a different disk, or different OS, etc. Often I allow only one disk to be the startup disk. If I allow it to choose between two disks, I can't always know why it rejects one and chooses the other, or whether the other was the default, or which.



    •   Alt1st February 2016, 08:26

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  3. #3
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    Re: black screen when laptop boot

    Try using Safe mode with networking. And try to restore the system to an earlier date. Or check your Master Boot Record (MBR).



    •   Alt17th April 2016, 11:53

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  4. #4
    Advanced Member level 2
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    Re: black screen when laptop boot

    Not booting from CD or flash tends to suggest something fundamental not OS related.
    Things to try:
    Listen for any beeps as the machine starts up. Count them.
    Check your bios settings.
    If your machine can output to a different display - plug a cable in and see if you can get any output there

    In situations like this I have a boot flash drive with diagnostics on it - but if even flash still doesnt work that won't help
    and you may be better off asking the manufacturer if the above fails. Do a google search for your machine with the name
    of the antivirus you used - that may tell you something.



  5. #5
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    Re: black screen when laptop boot

    I ran into the same problem with my ACER laptop in January and this fixed it but it wasn't a permanent fix, though. After that incident my lappy wasn't able to detect his battery and keys were always stuck. Needed to buy a new lappy by the end of April.



    •   Alt29th July 2016, 00:20

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  6. #6
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    Re: black screen when laptop boot

    This happened to my laptop just this morning. I'm not really a techie one but I will try to follow the things you first did. I hope it works. :)



  7. #7
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    Re: black screen when laptop boot

    I guess, there is something wrong with the hardware. its better to consult some service centre



  8. #8
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    Re: black screen when laptop boot

    Unplug the power, remove the battery and then hold the power button for 30 to 60 seconds. Then reattach the power and attempt a boot.



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