Quote Originally Posted by Brink View Post
Hello Churin,

It would be best to set you BIOS to AHCI before installing Windows.

You'll need to switch it back to IDE in BIOS for now so that Windows will be able to boot. Afterwards, you might see if using the tutorial below may be able to help.

AHCI : Enable in Windows 7 / Vista - Windows 7 Help Forums

Hope this helps,
Shawn
Hello I have the same issue
I made this in here
Changing IDE/SATA to Compatible from Enhanced makes OS not boot - Microsoft Community

can you help me to solve it? I did what you said but it didn't help me.

Changing IDE/SATA to Compatible from Enhanced makes OS not boot (inaccessible_boot_device)

Hello, I know this is my fault but I was looking for a way to fix my hard disk (it constantly increases the CRC error count)but anyway it made me have another issue. now I can't get back to Enhanced mode because whenever I try to change back to Enhanced mode ,it makes windows to raise BSOD with inaccessible_boot_device error, I tried to find any solution but I couldn't. now I am stuck with Compatible mode so I want to get back to Enhanced mode. I want to know how shall I fix this issue, I guess changing some registry keys will do the work but I dunno which key has to be changed.

I have Windows 8.1 x64bit edition and Foxconn G41mx-k motherboard and hitachi 256GB hard disk.