Re: BIOS Modes

Anssi Saari wrote:
> tb <[email protected]> writes:
> 
>> If anybody else has run into this issue and was able to solve it,
>> please let me know.
> 
> Switching from IDE to AHCI is a fairly common thing to do and the need
> for that has been around a long time. I guess ever since AHCI came
> out. I think I did that switch back in the XP era.
> 
> More recently, same thing with going to NVMe SSD from SATA SSD. Fix in
> Windows 10 was the same too, boot Windows to safe mode, then boot to
> normal mode.
> 
> Now, Windows 10 being what it is, the hardest part of this is actually
> booting it into safe mode. You can try to hammer shift-f8 when system
> boots but it may not work.
> 
> Since you can boot Windows in IDE mode, start from there. Hold shift
> while selecting restart from the menu, you get to troubleshooting mode,
> select Troubleshoot->Advanced options->Startup Settings->Restart. 
> 
> System reboots, go to BIOS and change to AHCI, save and exit. System
> should boot up into a menu where you can select safe mode. If things
> work there, then restarting from safe mode should get you into Windows
> 10 normally in AHCI mode. If not, back to square one.

You can configure for Safe Mode with a bcdedit command. If your menu has
Powershell, you can type "cmd" into it, to make the responses into
Command Prompt responses.

https://support.thinkcritical.com/kb/articles/switch-windows-10-from-raid-ide-to-ahci

     Click the Start Button and type cmd
     Right-click the result and select Run as administrator
     Type this command and press ENTER:
        bcdedit /set {current} safeboot minimal       (ALT: bcdedit /set safeboot minimal)
     Restart the computer and enter BIOS Setup
     Change the SATA Operation mode to AHCI from either IDE or RAID
     Save changes and exit Setup and Windows will automatically boot to Safe Mode.
     Right-click the Windows Start Menu once more. Choose Command Prompt (Admin).
     Type this command and press ENTER:
        bcdedit /deletevalue {current} safeboot       (ALT: bcdedit /deletevalue safeboot)
     Reboot once more and Windows will automatically start with AHCI drivers enabled.

In past Windows 10 editions, you could use "driver re-arming" to prepare
the OS for "sniffing out the new disk storage port mode". But that recipe
was changing from one edition of Windows 10 to the next, so following the
recipe became a nuisance.

    Paul