Windows 10: Switched from RAID to AHCI in BIOS and lost reboot abilities

Discus and support Switched from RAID to AHCI in BIOS and lost reboot abilities in Windows 10 Performance & Maintenance to solve the problem; I have MSI Titan GT80 SLI running latest Win10... actually two of them configured nearly identically. Both came with the RAID enabled. I undid the... Discussion in 'Windows 10 Performance & Maintenance' started by dictum, May 4, 2021.

  1. dictum Win User

    Switched from RAID to AHCI in BIOS and lost reboot abilities


    I have MSI Titan GT80 SLI running latest Win10... actually two of them configured nearly identically. Both came with the RAID enabled. I undid the RAID. Now the disks are separate and the OS is just on one disk. Ever since then, I lost the ability to reboot. It comes down and then hangs upon the MSI Logo "Splash screen". Both machines. I switched back to RAID mode in BIOS and reboot works. However, in RAID most it doesn't see all 4 disks, but only 3 out of 4. The remaining 2.5" SATAIII SSD it just doesn't see. (Whatever goes in its place, SSD or HDD). I went back to AHCI since there is no point in RAID and ever since then have been doing shutdown and then boot. Reboot just doesn't happen. I am not sure it's a win10 issue, could be the issue with the vendor and the BIOS or such. Still wondering if anyone else had to deal with that.

    :)
     
    dictum, May 4, 2021
    #1
  2. dictum Win User

    Switched from RAID to AHCI in BIOS and lost reboot abilities

    I have MSI Titan GT80 SLI running latest Win10... actually two of them configured nearly identically.

    Both came with the RAID enabled. I undid the RAID. Now the disks are separate and the OS is just on one disk. Ever since then, I lost the ability to reboot. It comes down and then hangs upon the MSI Logo "Splash screen".
    Both machines.

    I switched back to RAID mode in BIOS and reboot works. However, in RAID most it doesn't see all 4 disks, but only 3 out of 4. The remaining 2.5" SATAIII SSD it just doesn't see. (Whatever goes in its place, SSD or HDD).

    I went back to AHCI since there is no point in RAID and ever since then have been doing shutdown and then boot. Reboot just doesn't happen.

    I am not sure it's a win10 issue, could be the issue with the vendor and the BIOS or such. Still wondering if anyone else had to deal with that.
     
    dictum, May 4, 2021
    #2
  3. harrymc Win User
    Switch from Raid On to AHCI (and vice versa) on reboot via script

    Windows can be switch from Raid On to AHCI.
    I bring below the procedure described in the article
    How to switch SATA controller driver from RAID to AHCI on Windows 10 without a reinstall.
    I suggest to take backups first, including an image backup of the Windows partition.

    1. Boot to Windows with your current SATA controller configuration
    2. Open Device Manager
    3. Expand Storage Controllers and identify the Intel SATA RAID Controller
    4. View properties of the identified controller
    5. On the Driver tab, click the Update driver… button
    6. Browse my computer…, Let me pick…
    7. Uncheck Show compatible hardware
    8. Select Microsoft as manufacturer
    9. Select Microsoft Storage Spaces Controller as model3
    10. Accept that Windows cannot confirm that this driver is compatible
    11. Save changes, reboot to BIOS and change RAID SATA Controller to AHCI
    12. Save changes and reboot normally, hopefully to Windows

    An alternative solution that involves using bcdedit can be found in
    Switch Windows 10 from RAID/IDE to AHCI operation
    (although I like it less when grub is involved).
     
    harrymc, May 4, 2021
    #3
  4. Switched from RAID to AHCI in BIOS and lost reboot abilities

    RAID recovery

    Heya, usually you need to set your storage configuration in BIOS to AHCI or RAID first.

    Switch to RAID in BIOS and than (I only know this for Intel Systems), restart your PC.

    At the beginning of the bootsequence you should see an additional screen, with a detail list of RAID drives.

    It should list your drive too, if not, than it is not a RAID0 any more.

    If it can boot back to your system, you should immediately backup all data you need.

    The problem is RAID is a one-way process (at least for Windows).

    After you got your backups, reboot and set your BIOS storage settings back to AHCI or RAID1 or whatever you wanted. Than you can format your drive and reinstall the new OS.

    Hope this will help you out.
     
    Annoyed_Chris, May 4, 2021
    #4
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Switched from RAID to AHCI in BIOS and lost reboot abilities

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