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installing AHCI drivers and changing BIOS to AHCI I lose D:'s GPT
see second post.
I have a 3TB drive D: for data formatted with GPT.
Had BIOS OnChip SATA Type set as "RAID" "As SATA Type" from back in the day. When I took out the RAID, I forgot to change this to AHCI when I reformatted and got rid of RAID drives!
Changing to "AHCI" "As SATA Type" as shown in image in second post, causes Windows 7 x64 to lose / not see the GPT on my drive D: and it wants to "initialize" it as MBR or GPT-- no way!!
Last edited by rancur3p1c; 23 Nov 2014 at 03:59.