Windows 10: Enable AHCI in Windows 8 and Windows 10 after Installation  

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  1.    28 Aug 2016 #50

    Umut said: View Post
    Its a 3 year old pc and i never searched about IDE & AHCI until today. Because my pc was working fine with Windows 7 until installing Windows 10 last month. After that, ONLY when i open 8-9 browser tabs sometimes SSD usage increases to %100 and a few second later everything freezes around a minute or so.
    Hi Umut

    Your freezing issues are almost surely caused by the Anniversary Update of Windows 10.

    Check out this thread on reddit:
    Windows 10 fully freezes after anniversary update : Windows10

    The fix that worked for me was the following:
    DaEistee comments on Windows 10 fully freezes after anniversary update
      My ComputerSystem Spec


  2. Posts : 3
    Windows 10 Pro
       08 Oct 2016 #51

    First post here. First thanks to all for giving valuable tips.
    When I had my Apple Mac mini's and installed Windows 8 and I wanted to change from IDE to AHCI I simply booted in Windows, changed in msconfig.exe to safe boot - minimal, rebooted and changed back again to normal boot. Recently I moved away from Mac mini's to an ASUS VC65R and need to change from AHCI to RAID and same trick worked there too.

    On another note - some people have mentioned that they like to create/delete folders on the Start Menu. I have Classic Start menu installed (but am not running it...) and when I want to make folders or move stuff around I start the Classic menu and create / delete folders in there and it gets propagated to the Metro Start Menu.
      My ComputerSystem Spec


  3. Posts : 11
    64 bit windows 10 pro
       09 Oct 2016 #52

    I attempted this today, unsuccesfully I'm afraid. I have a Samsung 850EVO SSD.
    As I went through the registry changes I found that at step5 value was 0, at step 7/8- HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStorAV, there was no option for StartOverride. I went back to iaStorV and found the StartOverride option there which I changed fro 3 to 0. at step 11 value was 0, step 15 value was 0.
    I then closed regedit and booted to BIOS, changed to AHCI, saved & exited to restart.
    Instead of restarting, I got this error message "INACCESSIBLE_BOOT_DEVICE"
    I went back to BIOS changed back to IDE, same message.
    Finally Windows "repaired the problem" and the computer restarted normally.
    I went back to regedit and found the iaStorV\startoverride was changed back to 3.
    Any idea what went wrong and how I can make the change?
      My ComputerSystem Spec


  4. Posts : 23,693
    64-bit Windows 10 Pro build 16362
    Thread Starter
       09 Oct 2016 #53

    Hello John, and welcome to Ten Forums.

    If the StartOverride key is not there at step 6, it'll need to be added.
      My ComputersSystem Spec


  5. Posts : 11
    64 bit windows 10 pro
       09 Oct 2016 #54

    Brink said: View Post
    Hello John, and welcome to Ten Forums.

    If the StartOverride key is not there at step 6, it'll need to be added.
    Not being well versed in registry editing, how does it get added?

    Thanks
      My ComputerSystem Spec


  6. Posts : 11
    64 bit windows 10 pro
       09 Oct 2016 #55

    Brink said: View Post
    Hello John, and welcome to Ten Forums.

    If the StartOverride key is not there at step 6, it'll need to be added.
    One more question. Does the StartOveride key in iaStoreV need to be changed to 0 also?
      My ComputerSystem Spec


  7. Posts : 11
    64 bit windows 10 pro
       09 Oct 2016 #56

    Brink said: View Post
    Hello John, and welcome to Ten Forums.

    If the StartOverride key is not there at step 6, it'll need to be added.
    Is there more than one way to skinthis cat? I also came across this post of the forum which seems simpler...good method?

    One more question. Does the StartOveride key in iaStoreV need to be changed to 0 also?
      My ComputerSystem Spec


  8. Posts : 23,693
    64-bit Windows 10 Pro build 16362
    Thread Starter
       09 Oct 2016 #57

    Before adding the key, please post a screenshot showing the location at step 6 to verify first.

    https://www.tenforums.com/tutorials/1731-screenshots-files-upload-post-ten-forums.html

    There are a few other ways to do this, but I found the method in the tutorial here to be the easiest and more reliable method.
      My ComputersSystem Spec

  9.    09 Oct 2016 #58

    farmer john said: View Post
    Is there more than one way to skinthis cat? I also came across this post of the forum which seems simpler...good method?

    One more question. Does the StartOveride key in iaStoreV need to be changed to 0 also?
    If you mean the Safe Mode Method , then yes for many with Win 8 or win10 it works IDE to ACHI only though....

    Attn. SSD owners - Enabling AHCI mode AFTER Windows 10 installation.


    AHCI to RAID or vica versa this tutorial's method works I can attest to.

    KB
    Last edited by Kbird; 10 Oct 2016 at 11:47.
      My ComputerSystem Spec


  10. Posts : 11
    64 bit windows 10 pro
       10 Oct 2016 #59

    Click image for larger version. 

Name:	registryStorage.JPG 
Views:	91 
Size:	92.4 KB 
ID:	105252 here's the screenshot of the registry window
      My ComputerSystem Spec


 
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