Unable to boot from disc

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  1. Posts : 365
    Windows 7 Professional SP1 x64
    Thread Starter
       #61

    Yesterday evening I think it was after I ran the clean command. I think since then all I get when I boot up is being told to put a boot from a disc. I tried to reinstall W7, which install fine, but it wouldn't boot up for the first time. I changed the boot order, as you said to do and run those commands
      My Computer


  2. Posts : 365
    Windows 7 Professional SP1 x64
    Thread Starter
       #62

    I get the blue screen when I just tried to reinstall w7, twice. Also when I changed the disk type, could that have anything to do with it?
    Attached Thumbnails Attached Thumbnails Unable to boot from disc-imageuploadedbysevenforums1340122014.147545.jpg   Unable to boot from disc-imageuploadedbysevenforums1340122110.820476.jpg   Unable to boot from disc-imageuploadedbysevenforums1340122171.430831.jpg  
      My Computer

  3.    #63

    It says clearly that the HD is still GPT formatted. This means you did not run the Convert MBR command after Diskpart Clean command as repeatedly instructed.

    The inattention to detail is disturbing in such complicated cases where we rely on you to execute commands precisely and exactly as given.

    On the second screen of booted Win7 installer, select Repair My Computer.

    From Recovery Tools list option, choose Command Line and type each command followed by Enter:

    DISKPART
    LIST DISK
    SEL DISK 0 (confirm from the list this is the number of the correct HD, by size)
    CLEAN
    CONVERT MBR
    EXIT

    Now try install following these steps exactly to Clean Install Windows 7.
      My Computer


  4. Posts : 365
    Windows 7 Professional SP1 x64
    Thread Starter
       #64

    I'm absolutely sure I fido run the command, as you said. I'll try it in a bit.
      My Computer

  5.   My Computer


  6. Posts : 365
    Windows 7 Professional SP1 x64
    Thread Starter
       #66

    Ok, I followed the instructions exactly, and double checked before I did anything. It was installing then the blue screen came up.
    Attached Thumbnails Attached Thumbnails Unable to boot from disc-imageuploadedbysevenforums1340130148.927020.jpg   Unable to boot from disc-imageuploadedbysevenforums1340130873.967627.jpg  
      My Computer

  7.    #67

    Carefully remove all but 2gb RAM to try install. Make sure to guard against static shock by touching metal on the case before touching sticks.

    Next test your RAM using Memtest86+ for 5-6 passes or overnight to isolate bad stick or slot as shown in blue link tutorial. Swap RAM sticks, check for debris in slots with magnifying glass under strong light.

    http://support.microsoft.com/kb/171003
      My Computer


  8. Posts : 365
    Windows 7 Professional SP1 x64
    Thread Starter
       #68

    The RAM is in two 4GB cards. How long will each test take? (I'll let it run until 6 or 7 passes)
      My Computer

  9.    #69

    Try unplugging one stick to try install again. This is a very common install issue and you have a RAM error.
      My Computer


  10. Posts : 365
    Windows 7 Professional SP1 x64
    Thread Starter
       #70

    So wait, are you saying to run the RAM test or try and install windows with one card removed?
      My Computer


 
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