Windows 10: I reset BIOS SATA setting to ACHI and now can't return to RAID

I somehow reset my BIOS when inserting a new graphics card. My system drive is an SDD whilst I also have two HDDs connected to the motherboard which are supposed to be in RAID 0. I reconfigured my BIOS the best I could from memory and when I loaded Windows, my RAID was missing. I found a setting in the BIOS called the SATA configuration which is selectable between AHCI (default) and RAID. I presume that it was set to RAID previously in order for the HDDs to be in RAID 0 configuration so I set the SATA configuration to RAID. After doing this, Windows would no longer boot. I recall Windows having a hangup about this setting and it occurs to me that maybe Windows is okay if the setting changes from RAID to AHCI but changes itself when it detects this change and then refuses to go in the opposite direction after the setting is changed back. Does anyone know if this might be the case?

:)

 

Windows 10 upgrade from Windows 7 Home Premium on SSD, now drive not recognized

I never had any issues throughout the Beta's and the Release and now the November Update to build 10586 on my Samsung 850 Pro SSD. In the BIOS do you have it set to ACHI from SATA/IDE mode? Maybe your system doesn't support ACHI?

Thanks,

Daniel

 

INACCESSIBLE_BOOT_DEVICE

I have an alienware 15 r2 falmost 4 months now and i have experience many blue screens of desath ! After i cleaned installed th windows 10 home a week ago to recover from a previous bsod all were working normally ! Until today that another bsod appeared
with the message inaccessible windows device. I tried th solution with the command line dism bht it doesnt work . Have u any shggestions please ??? Ty very much .

Specs : windows 10 home 64-bit

gt970m nvidia and intel hd intergrated

ssd nvme 225gb hybrid with 1 tb hdd

UPDATE

I changed the SATA operation setting in BIOS enviroment from RAID to ACHI and the computer booted normally this time, but i have the following problems. My BIOS SATA operation was preset on RAID and it worked fine so i would like to change it back to from
ACHI and make my PC working again, my boot time is somehow slower, i noticed when the problem happened that my BIOS time was changed into a random time and i saw that INACCESSIBLE_BOOT_DEVICE stopcode can be caused in raid systems from a CMOS problem. Please
help cause i really want to go back to RAID mode and boot from there normally

 

Not familiar with your MB, but you should have an option in BIOS to reset to factory defaults. On the odd chance you do not, popping the CMOS battery and reinserting will also reset. Copy down all the current settings first, so at least you have a return point. Only thing I can think of now.

 

Thanks but unfortunately, resetting the BIOS is how I got into this situation so I don't see how it could help. Resetting the BIOS will change the SATA setting to AHCI but I've already done that so I can type this message. It won't get me any closer to recovering my RAID 0!

 

I haven't found any definitive statement saying that Windows can't handle RAID->AHCI->RAID. I tried this on my system and get the INACCESSIBLE_BOOT_DEVICE error when going from RAID->AHCI and from AHCI->RAID.

However, in both cases booting to safe mode and then rebooting back into normal mode fixes the issue.

 

Windows 10 is pretty forgiving if you go through Safe Mode as 'Nettles said

If you already installed under RAID, you can change to AHCI with Win 10. ( and visa versa)

• In Win 10, do a safemode boot by going to run (Win Key+R) => type msconfig.exe and choose => boot => safe boot.
• On the reboot, hit F2 or Delete and go into Bios ( before Safe Mode ) and change to AHCI/RAID as needed.
• Then boot into Safemode and let Win10 load the default MS drivers automatically.
• Open msconfig as as above change back to normal boot, then reboot.
• Win10 will once again load the AHCI/RAID Drivers as needed automatically ( may need a reboot
• Then install the Intel RST Driver or Samsung NVMe driver if needed.

 

Thanks, guys; restarting in safemode and switching the setting during the reboot (and then rebooting back into normal mode) fixed it! My life has improved 7%! <3

 

only 7% ? *Smile rough week ?

thanks for reporting back ....

KB.