"Operating System Not Found" Error - Windows 7 (x64 bit) 4GB Memory


  1. Se7enMakers
    Posts : 27
    Windows 7 Home Premium/x64(64)-bit
       New #1

    "Operating System Not Found" Error - Windows 7 (x64 bit) 4GB Memory



    My laptop is a SONY VAIO - VGN-NS255D

    Anyone know how to fix this?
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  3. Arc
    Posts : 35,373
    Microsoft Windows 10 Pro Insider Preview 64-bit
       New #2

    Did you make /have the OEM manufacturers system repair disk ?
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  4. Se7enMakers
    Posts : 27
    Windows 7 Home Premium/x64(64)-bit
    Thread Starter
       New #3

    Arc said:
    Did you make /have the OEM manufacturers system repair disk ?
    No, but a Windows 7 Home Premium installation disk. Would that help?
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  6. whs
    Posts : 26,210
    Vista, Windows7, Mint Mate, Zorin, Windows 8
       New #4

    Could be a MBR problem which you might be able to fix with the bootabls CD of Partition Wizard: Free Partition Magic alternative. Free Partition Manager Software for Windows 7/VISTA/XP/2000 and Windows Server 2003/2008/2000.
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  7. Arc
    Posts : 35,373
    Microsoft Windows 10 Pro Insider Preview 64-bit
       New #5

    Se7enMakers said:
    Arc said:
    Did you make /have the OEM manufacturers system repair disk ?
    No, but a Windows 7 Home Premium installation disk. Would that help?
    Try Startup Repair and see if the repair mechanism finds the OS . If finds, run it at least three times, with restarts after every single run .

    If at least three attempts of startup repair fails to recover it, let us know the situation.
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  8. Se7enMakers
    Posts : 27
    Windows 7 Home Premium/x64(64)-bit
    Thread Starter
       New #6

    Arc said:
    Se7enMakers said:
    Arc said:
    Did you make /have the OEM manufacturers system repair disk ?
    No, but a Windows 7 Home Premium installation disk. Would that help?
    Try Startup Repair and see if the repair mechanism finds the OS . If finds, run it at least three times, with restarts after every single run .

    If at least three attempts of startup repair fails to recover it, let us know the situation.
    ill try that
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  10. Se7enMakers
    Posts : 27
    Windows 7 Home Premium/x64(64)-bit
    Thread Starter
       New #7

    had to replace my hard drive -solved-
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