Windows 8 and 8.1 Forums


Attempts to revive unbootable system

  1. #1

    Attempts to revive unbootable system


    Since yestarday I've been greeted with 'attempting repairs' on every boot. The first thing I did was boot to a Win7 backup system on one of my storage drives and ran antivirus scans. Next I and made an image of my main system in it's current broken state. My trials led to Refresh PC being the only way to get my main system running but I'd rather continue from where I left off. Tell me if you think I overlooked any solution.

    I tried:
    * Built-in startup repair
    Log file srttrail .txt reports the root cause is bootmanager missing or corrupted, or something to that effect.

    *bootsect /nt60 /mbr, according to sevenforums tutorial
    Didnt help.

    *bootrec /fixmbr, /fixboot, and /rebuildbcd, according to sevenforums tutorial
    Didnt help.

    *Sfc /scannow
    No corrupt system files found.
    Last edited by RoadToNever; 28 Jan 2013 at 11:13.

      My System SpecsSystem Spec

  2. #2


    Portsmouth Hants
    Posts : 772
    Windows 8.1 Pro with Media Center


    One more - make sure you use elevated (admin) command prompt, but can also be run from a bootable windows install disk (Windows Preinstallation Environment command prompt can be started with Shift+F10 after you have selected language and keyboard options):

    bcdboot c:\windows /s c: /f ALL

    This writes boot system files on the C: drive to boot C:\windows for BIOS and UEFI systems

    change the drive letters as required.
      My System SpecsSystem Spec

  3. #3


    Posts : 2,156
    Win7 Ult on DIY; Win8 Pro on MBP/Parallels; Win7 Ult on MBP/Boot Camp; Win7 Ult/Win8 Pro on HP


    Quote Originally Posted by RoadToNever View Post
    Since yestarday I've been greeted with 'attempting repairs' on every boot. The first thing I did was boot to a Win7 backup system on one of my storage drives and ran antivirus scans. Next I and made an image of my main system in it's current broken state. My trials led to Refresh PC being the only way to get my main system running but I'd rather continue from where I left off. Tell me if you think I overlooked any solution.

    I tried:
    * Built-in startup repair
    Log file srttrail .txt reports the root cause is bootmanager missing or corrupted, or something to that effect.

    *bootsect /nt60 /mbr, according to sevenforums tutorial
    Didnt help.

    *bootrec /fixmbr, /fixboot, and /rebuildbcd, according to sevenforums tutorial
    Didnt help.

    *Sfc /scannow
    No corrupt system files found.
    If you can get your personal data off, then I'd do a reset, if possible, rather than a refresh--if it comes to that. Most importantly, reset will format.

    Refresh your PC—Attempts to solve system problems by replacing system files without affecting user data files. Such files still should be backed up. Installed programs will have to be reinstalled except those from the Windows Store. A list of uninstalled programs is provided. Settings will be maintained.

    Reset your PC—Formats, removes everything, and reinstalls Win8. Not even settings maintained. Be well backed up.
      My System SpecsSystem Spec

  4. #4


    West Auckland
    Posts : 107
    Windows 8 Pro Pack x64


    Recently after messing with things I ended up booting up with a Attempting Repairs screen that seemed to do nothing for ages, long story short I eventually just left it to do it's thing even though it appears to be doing nothing. After a very long wait it eventually finished up on it's own and fixed whatever problem there was.

    If it's caught in a boot loop, restarting over and over then reset or refresh may be the way to go.
      My System SpecsSystem Spec

  5. #5


    I had similar problems after upgrading to Win8. It was due to my mobo's UEFI bios setup. I can't recall the details but it involved my mobo UEFI bios settings, my hard drive SATA settings - AHCI etc, and so on. There are good posts on this forum covering these aspects if you search for UEFI install. Don't be so sure your problem is fixed. Mine seemed to work but then odd things began happening!
      My System SpecsSystem Spec

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