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Missing operating system after BIOS P8Z77-V PRO, LGA 1155,Intel i7 3770k

Hello

I'm missing my Operating System after a BIOS update from ver 1805- 2014 . I have a P8Z77-V PRO motherboard, LGA 1155,Intel i7 3770k@ 3.50Ghz ,Ram 16384 MB DDR3 1333MHz and two x 1TB hard drives with one RAID configured. I'm stuck in the ASUS UEFI BIOS Utility - EZ Mode screen.I have no clue how to reset the boot configuration to what it was before. Please anyone with technical know how to resolve this, will greatly appreciate . Thanks.
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More about missing operating system bios p8z77 pro lga 1155 intel 3770k
  1. Check to see that the bios sees your hard drives and that your raid array is still active. Some operating systems have a restore boot sector when booted into. I know for sure Windows 7 does.
  2. Found a article on Tom's Hardware that will explain how to run the restore process How to fix Windows 7 MBR
  3. Best answer
    ldee247 said:
    Hello

    I'm missing my Operating System after a BIOS update from ver 1805- 2014 . I have a P8Z77-V PRO motherboard, LGA 1155,Intel i7 3770k@ 3.50Ghz ,Ram 16384 MB DDR3 1333MHz and two x 1TB hard drives with one RAID configured. I'm stuck in the ASUS UEFI BIOS Utility - EZ Mode screen.I have no clue how to reset the boot configuration to what it was before. Please anyone with technical know how to resolve this, will greatly appreciate . Thanks.


    Hi, In BIOS, Advanced mode, Advanced menu, SATA Configuration, set SATA Mode Selection to RAID.
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