1.    17 Sep 2016 #1


    I run Win10 64bit on an AS-Rock Q1900-ITX board as a PVR backend and connect to it via VNC as and when required for maintenance. The system runs largely trouble free. Recently I rebooted and noticed it had not come back up. Connected to a TV I now see it enters a boot loop with the message above.

    Win10 is installed on a 64GB NTFS SSD. It has 3 partitions - System Reserved (350MB), Windows (55GB) and 1 other at 450MB. There is also a 3TB HDD for data (NTFS, single partition)

    I have looked around this board and the internet for solutions and put it down to EFI/MBR issues. I have seen an error message at times stating an issue with \EFI\Boot or similar. I am pretty handy with IT but this problem has had me stumped for a week. I have tried the Windows recovery disk USB created on another machine (which fails to fix) and various 3rd party ones along with Linux live disks etc which all work and the disks in the system are intact and functioning normally but I feel I am getting further away from a solution to getting it booting again.

    Unfortunately I cannot run the diagnostic tool as mentioned in the thread stickies.

    Any help greatly appreciated before I have to re-install which I am reluctant to do due to the amount of config necessary for TV channels etc.

      My ComputerSystem Spec

  2. axe0's Avatar
    Posts : 13,857
    Windows 10 Pro
       18 Sep 2016 #2

    Hi steford,

    Download this ISO and mount it on a USB, boot from the USB.
    When booted, choose 'Fix Windows boot problems' at the left side in the 'restore part'
    Microsoft OneDrive - Access files anywhere. Create docs with free Office Online..

    See this post for a clear picture to know where you can find this option
      My ComputersSystem Spec

  3.    18 Sep 2016 #3

    Thanks for that. I'd had a further play last night and made things worse so decided to re-install to save any more messing.

    After the re-install I can now see the drive has been partitioned differently with a 100MB EFI partition which wasn't there before. This legacy/BIOS/GPT stuff is really beyond me.

    I am now booting to Windows again, however, a restart in Windows causes the PC to hang on the POST screen when booting with "9C" in the corner. A power cycle reboots to UEFI settings and finally, a "save and exit" there boots to Windows properly. Without a screen I really need to be able to hit "restart" and assume that the machine will do just that.

    Any thoughts?
      My ComputerSystem Spec

  4. axe0's Avatar
    Posts : 13,857
    Windows 10 Pro
       18 Sep 2016 #4

    A 100MB EFI partition means that your in UEFI mode, there should then also be a recovery partition of 450MB besides the Windows partition. Thus you're using the GPT format.

    The MBR format (legacy mode in many situations) has only 2 partitions, 'system reserved' and the Windows partition.

    If you mean a 0x9C, it means that the system has received a hardware error report from the CPU, in simple terms a hardware error has occured.
    Unfortunately even that I say 'hardware error', a hardware error is caused by a variety of things
    • Manufacturer software (bloatware and software from the motherboard manufacturer
    • Overclocking
    • A BIOS problem (normally resolved with a reset to default settings or updating the BIOS)
    • Overheating
    • Improperly seated cards (RAM/ GPU)
    • Damaged hardware (including cables)
    • Drivers
      My ComputersSystem Spec


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