windows installation broke in bios update

Discussion in 'Windows 8' started by adit123tya, Nov 5, 2012.

  1. adit123tya

    adit123tya MDL Senior Member

    Oct 25, 2012
    397
    197
    10
    This is not a question.... but I'm a bit confused... I had installed win 8 activated with WMC free key... everything working fine and I did a bios upgrade that to went fine... but as soon as the upgrade completed system restarted (as usual) and I found my windows completely broken and wouldn't boot and on next reboot entered recovery mode... it tried system restore failed... it tried all possible recovery option but won't work... I had a complete reinstall of windows... any one knows y this would have happened...
     
  2. Tito

    Tito Super Mod / Adviser
    Staff Member

    Nov 30, 2009
    17,575
    15,387
    340
    Most probably AHCI mode reverted to default.

    :g:
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  3. adit123tya

    adit123tya MDL Senior Member

    Oct 25, 2012
    397
    197
    10
    Sorry but I donot know anything about AHCI... can u help me out with this
     
  4. Tito

    Tito Super Mod / Adviser
    Staff Member

    Nov 30, 2009
    17,575
    15,387
    340
    Which mobo??
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  5. adit123tya

    adit123tya MDL Senior Member

    Oct 25, 2012
    397
    197
    10
    Intel Dh61ww
     
  6. Tito

    Tito Super Mod / Adviser
    Staff Member

    Nov 30, 2009
    17,575
    15,387
    340
    Check the SATA settings. If they are set to AHCI before bios upgrade & the default is IDE/Compatible then after bios update Windows can't detect the hdd & should crash.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  7. moderate

    moderate MDL Guru

    Aug 31, 2009
    2,648
    2,153
    90
    There is an option in BIOS's integrated peripherals (storage) "SATA Mode". It can have values IDE, AHCI, RAID. When you flash the BIOS the system default value is selected and if it different from the one used for Windows 8 installation, the system will not boot with INACCESSIBLE BOOT DEVICE BSOD screen. Just change the value and try to boot. When you will boot successfully, you can enable other two methods (drivers) in system registry.
     
  8. Cees Heim

    Cees Heim MDL Junior Member

    Sep 14, 2009
    58
    4
    0
    isn't it also possible that on the "old" "bios" uefi wasn't enabled and after Flash it got enabled ?

    I did read some Things about it here and Windows Need to be reinstalled after changing that
     
  9. Tito

    Tito Super Mod / Adviser
    Staff Member

    Nov 30, 2009
    17,575
    15,387
    340
    UEFI boot enabled means you can now boot from a media that has UEFI boot entry in it. It doesn't mean that your previously MBR formatted HDD will stop booting.

    :)
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  10. adit123tya

    adit123tya MDL Senior Member

    Oct 25, 2012
    397
    197
    10
    I already stated that I had a reinstall later and everything is fine... I have posted this so that this don't occur next time... and yes others may get use out of my experience
     
  11. adit123tya

    adit123tya MDL Senior Member

    Oct 25, 2012
    397
    197
    10
    the uefi was disabled after and before flash
     
  12. naseap

    naseap MDL Senior Member

    Jul 25, 2009
    489
    123
    10
    #12 naseap, Nov 5, 2012
    Last edited: Nov 5, 2012
    Of course everything was fine after a reinstall, that was not the issue. What they are trying to tell you is that after your bios update your bios settings went back to default. This put your sata mode setting in IDE mode and your Win8 was most likely installed in AHCI mode. You did not need to do a format and reinstall. You just needed to go in to the bios settings and put your sata mode setting back in AHCI mode and your system would have booted up. Anyone that does a bios update should know what values their bios is setup with prior to the update.
    Update: after reading your comment again I am not sure if you are acknowledging that if it was the sata mode setting or not.