Windows 10: AHCI vs regular Native IDE

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  1. essenbe's Avatar
    Posts : 11,342
    Windows 10 Pro and Windows 10 Pro Insider
       26 Aug 2015 #31

    see if you can find out what msahci.sys is.
      My ComputersSystem Spec

  2. Night Hawk's Avatar
    Posts : 3,361
    W10 Pro x64/W7 Ultimate x64 dual boot main - W10 Pro Insider Preview/W7 Pro x64 - remote pc
       27 Aug 2015 #32

    That's a reg value you have to modify one of the DWord values for. That and the pciide are changed from 1 to 0 being the binary on'off switch in 7. In 10 don't bother to look for the MSahci value since it isn't there to find to begin with.

    Following the setting change in the bios 10 simply loaded up as it has been doing for the last two weeks as if nothing had been changed while the values changed in 7 still run into the stall on start up issue. With 7 a restart after the two values saw the change should have seen the correct drivers sought out by Windows automatically which didn't happen where you restart the system a few times before going into the bios to make the change there. No Go here!
      My ComputerSystem Spec

  3.    21 Apr 2017 #33

    For AMD users (old laptops) from 2009 to 2013 models

    I managed to get my old G6-1d48dx running smoothly on Windows 10 using this method!
    (Please note that not all G6's can use this method and you should proceed at your own discretion!)
    Steps to fix this error:

    1. Download BIOS revision F.46 (You most likely have F.48 or F.49) if it is available for your laptop (Go to the Windows 7 Drivers section>BIOS>Previous Versions).

    2. Install the older BIOS

    3.After installing the older BIOS, your laptop most likely will not boot fully, it should give a BSOD and restart, let it do this twice and the third time it should attempt to perform a startup repair THIS WILL (AND SHOULD) FAIL!

    4. After startup repair fails, click on "Advanced Options"

    5. Click Troubleshoot>Advanced options>Start-up settings

    6. Click restart

    7. When you see the start-up settings screen, press "4" on your keyboard

    8. You will then boot into safe mode, do not log into your computer when presented with the login screen, just press Power>Restart

    9. You should be able to fully boot into Windows now

    10. Put the computer to sleep and wake it, it should now fully work! The issue was that the newer BIOS breaks the way Windows 8/10 read the SATA configuration and downgrading the BIOS fixes it.


    there's no need to edit registry or going to BIOS because 90% of laptops are set to ACHI SATA as default settings
    i hope this one helps let me know!

    Last edited by aspire219; 21 Apr 2017 at 04:47.
      My ComputerSystem Spec

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