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

Discus and support Enable AHCI in Windows 8 and Windows 10 after Installation in Windows 10 Tutorials to solve the problem; Thanks Brink after adding the missing key and following the tutorial isit likely i'll meet with success? Discussion in 'Windows 10 Tutorials' started by dingorob, Oct 14, 2015.

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  1. FARMER JOHN
    farmer john Win User

    Enable AHCI in Windows 8 and Windows 10 after Installation


    Thanks Brink
    after adding the missing key and following the tutorial isit likely i'll meet with success?
     
    farmer john, Oct 9, 2016
    #61
  2. FARMER JOHN
    farmer john Win User

    What should I do about the StartOverride key DWORD value in the iaStorV key ?
     
    farmer john, Oct 11, 2016
    #62
  3. Brink
    Brink New Member
    You'll still do steps 3 to 5 for it. *Smile
     
    Brink, Oct 11, 2016
    #63
  4. FARMER JOHN
    farmer john Win User

    Enable AHCI in Windows 8 and Windows 10 after Installation

    Sorry to bug you with so many questions but I want to make sure I get it right this time.
    In the screenshot for steps 3-5 in the tutorial the iaStorV key does not show the StartOverride key but in my system it does.
    Does it not belong there? If it does, how to treat it?
     
    farmer john, Oct 12, 2016
    #64
  5. Brink
    Brink New Member
    It's no bother at all. You don't add the StartOverride key for steps 3-5. You would only do so for step 6 if not there. *Smile
     
    Brink, Oct 12, 2016
    #65
  6. FARMER JOHN
    farmer john Win User
    So then I would leave the StartOverride key in iaStorV alone? The value is currently set to 3.

    Interestingly when I checked my Lenovo P300 system at home which also has an 850 EVO SSD the StartOverride keys in iaStorAV and iaStorV are both set to 3, yet when looking at The Samsung Magician software it shows AHCI is enabled.
     
    farmer john, Oct 12, 2016
    #66
  7. Brink
    Brink New Member
    I'd go ahead and change it to "0" (zero) since it's already there.
     
    Brink, Oct 12, 2016
    #67
  8. FARMER JOHN
    farmer john Win User

    Enable AHCI in Windows 8 and Windows 10 after Installation

    Thanks Brink, Looks good, system started shows AHCI enabled in Samsung Magician.
    Would you recommend enabling Samsung's RAPID mode for better performance?
     
    farmer john, Oct 13, 2016
    #68
  9. Brink
    Brink New Member
    If you have Windows installed on a SSD, then it probably won't be worth enabling.

    If you think you could spare the RAM that it'll allocate, it won't hurt to try and see if you notice any performance difference with it enabled.

    If you don't notice any difference, then you could just disable it again to free up the RAM.
     
    Brink, Oct 13, 2016
    #69
  10. ITHEHAPPY
    ithehappy Win User
    Just registered here to mention the same bug/error. Purchased a 850 Evo just two days back and when I first installed the Magician app from the given CD in the box there was no AHCI error, but Rapid Mode was not clickable, then found the latest 4.9.7 on Samsung's website, then Rapid Mode was clickable but AHCI shows as deactivated.

    ROFL.
     
    ithehappy, Oct 15, 2016
    #70
  11. MARTIK777
    martik777 Win User
    If you cannot boot after the change, CHECK you BOOT DRIVE settings in BIOS. My normal boot drive changed after I changed to AHCI so I had to change it back and it then worked.
     
    martik777, Oct 16, 2016
    #71
  12. SMIRK24
    smirk24 Win User
    smirk24, Dec 19, 2016
    #72
  13. SMIRK24
    smirk24 Win User

    Enable AHCI in Windows 8 and Windows 10 after Installation

    Sorry brink i thought you were talking about the ahci power link

    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\0012ee47-9041-4b5d-9b77-535fba8b1442\0b2d69d7-a2a1-449c-9680-f91c70521c60]
    "Attributes"=dword:00000002

    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\0012ee47-9041-4b5d-9b77-535fba8b1442\dab60367-53fe-4fbc-825e-521d069d2456]
    "Attributes"=dword:00000002
     
    smirk24, Dec 19, 2016
    #73
  14. Brink
    Brink New Member
    Brink, Dec 19, 2016
    #74
  15. JIMDODDS
    jimdodds Win User
    Hi Shawn, I just put in a Samsung SSD and it works great, but with this usual problem. Samsung says a clean install is the only way--ack!! Reinstall over 100 programs!!! Any updates on this procedure? My BIOS currently says my SSD is running in SATA mode, not IDE.

    Thank you!!!
     
    jimdodds, Dec 27, 2016
    #75
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