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  1. Joined : Oct 2015
    Posts : 1
    win 10 x64
       10 Oct 2015 #31

    Toobad said: View Post
    Hello everybody. What started out as a request for guidance ended up with me solving my own problem. Thought I may as well pass on my findings anyway just in case it helps somebody else in the same situation.

    So over the weekend, through a series of upgrades, I successfully hopped from Vista to Windows 10 Professional 64-bit. But, as is not unusual, I again managed to snatch defeat from the jaws of victory. With my new SSD loaded with Win 10 goodness, I realised I was still operating it in IDE mode. A confident dip into the BIOS to enable AHCI mode resulted in Windows then failing to start because it no longer recognised the boot drive! I'm guessing the AHCI driver wasn't loaded during installation since the mode wasn't in use. So back to IDE mode and a surf around for solutions. Plenty around pertaining to Vista, Win 7 and Win 8 involving changing registry values but nothing tangible for Win 10. However I found this alternative Win 8 workaround which I can confirm works equally well in Windows 10. I realise I'm probably teaching my Grandmother to suck eggs with this post here but perhaps somebody as equally technophobic as me, may find it useful. This is what I did:

    1. Run Command Prompt as Admin
    2. Invoke a Safe Mode boot with the command: bcdedit /set {current} safeboot minimal
    3. Restart the PC and enter your BIOS during bootup.
    4. Change from IDE to AHCI mode then Save & Exit.
    5. Windows 10 will launch in Safe Mode.
    6. Right click the Window icon and select to run the Command Prompt in Admin mode from among the various options.
    7. Cancel Safe Mode booting with the command: bcdedit /deletevalue {current} safeboot
    8. Restart your PC once more and this time it will boot up normally but with AHCI mode activated.
    9. Bask in the reflected glory of being a total Windows 10 God
    I registered to express my eternal gratitude towards you, OP!
    I salute you!
    You are my GOD.
    I was very sceptical because of this somewhat old motherboard and having a IDE optical drive and having the SSD in the last SATA port (lol) but I decided to go with it.
    It worked flawlessly and here's the benchmark difference I got (red numbers were with IDE).
      My System SpecsSystem Spec


  2. Joined : Oct 2015
    Posts : 1
    Windows 10 Pro
       14 Oct 2015 #32

    My response is aimed at AMD users - Like many others, I tried the fix from Toobad, and like a handful, it did not work for me. The BSOD was obvious, and changing back to IDE would let it work again. But with an SSD, I don't want native IDE, so...

    Far be it for me to say that my solution will work for everyone, but if you are like me and you find this thread, try the following before giving up entirely:

    Go into your device manager and change your AMD IDE driver to AMD SATA Driver. You shouldn't need any third party downloads or even a download from AMD, as what I tried was a brand new install. Just keep picking the last option to enable searching for a driver on the system (Browse My Computer for driver Software > Let me pick from a list of device drivers on my computer > UNcheck show compatible hardware > Ignore the warning > Pick AMD, then AMD SATA Controller > Yes to the warning > Reboot. [Optionally, if you have it, scroll down below AMD in the manufacturer list and pick the only Standard SATA AHCI Controller driver and continue as before])
    Reboot and let the system come back into Windows 10 first before continuing. If it doesn't work... try the other driver, if needed
    Reboot once more and go into your BIOS and enable AHCI mode as you may have tried already, but with the following additions (where equipped, I realize some motherboards may not have these available or word them differently):

    Enable your XHCI Hand Off option
    Enable your EHCI Hand Off option
    Change your boot mode selection to UEFI and Legacy (some boards may not have this, just pick between the two if you need to troubleshoot)
    Change your Storage Boot Control to Legacy First

    Reboot.

    I was ready to give up and reinstall all over again but tried this out and was surprised to see that it had worked. Will it fix everyone? No, but it's better than giving up... Hope it helps.

    My motherboard is a Gigabyte 990FXA-UD5 (AMD 990FX Chipset)
      My System SpecsSystem Spec


  3. Joined : Oct 2015
    State College, PA
    Posts : 1
    Windows 10 Home
       28 Oct 2015 #33

    Spot-on solution


    Toobad said: View Post
    [ . . . ]

    1. Run Command Prompt as Admin
    2. Invoke a Safe Mode boot with the command: bcdedit /set {current} safeboot minimal
    3. Restart the PC and enter your BIOS during bootup.
    4. Change from IDE to AHCI mode then Save & Exit.
    5. Windows 10 will launch in Safe Mode.
    6. Right click the Window icon and select to run the Command Prompt in Admin mode from among the various options.
    7. Cancel Safe Mode booting with the command: bcdedit /deletevalue {current} safeboot
    8. Restart your PC once more and this time it will boot up normally but with AHCI mode activated.
    9. Bask in the reflected glory of being a total Windows 10 God
    Brilliant. These instructions worked perfectly for me after I had cloned my old HDD onto a SSD in IDE mode. Now running AHCI and loving it.

    I did have to look up a couple of things to accomplish the switch. One was the elementary matter of finding the CMD icon to run it as administrator (it is in the Windows System folder in the apps). The other was decoding something unique to my old Gigabyte motherboard. In BIOS there were several lines for setting drive types: Onchip SATA type, OnBoard SATA/IDE Ctrl Mode and OnChip SATA Port4/5 Type. Fortunately, a post by TwoCables at Configure SSD as AHCI instead of IDE? clearly explained that only the first setting (for ports 0,1,2,3) is to be set to ACHI. The OnBoard settings are for Gigabytes proprietary (and not very good) ports 5 and 6. I disabled them. The OnChipt SATA Port4/5 is to be set to "As SATA type." This is where I plug in my DVD drive.
      My System SpecsSystem Spec


  4. Joined : Jul 2014
    Serbia
    Posts : 7,162
    All kinds
       29 Oct 2015 #34

    CMD and CMD as Administrator is on right click menu on Start button.
    On Gigabyte MBs, ports 4 and 5 can be left in IDE mode for CD/DVD or HDD drives that don't like working in AHCI mode. The other two SATA ports (Grey/white) are on different SATA controllers (jMicron, SATA2/SATA 300).
    For boot SSD it's best to connect to SATA_0 port. It will be first on the list and default for BOOTing.
    If you want to check performance: Download AS SSD Benchmark - MajorGeeks is most accurate benchmark for SSDs.
      My System SpecsSystem Spec


  5. Joined : Nov 2015
    Posts : 1
    Windows 10
       03 Nov 2015 #35

    Gigabyte


    Yes! I looked everywhere for how to switch to AHCI on my gigabyte motherboard. For awhile I thought it was just too old. This works, but I went another route because I'm not the smartest in this field. In my Gigabyte Bios, I set on board to AHCI and As SATA type, then disabled on chip because I didnt have any GSATA plugged in. I also set PCI to PEG and my graphics card flies. After that, I couldn't get it to load because it kept saying inaccessible drive for operating system. I let it restart for me and let it try to boot again. The second time it came up and asked if I wanted to view startup options. I booted the computer up in safe mode with networking, then restarted one more time and it worked. I also set storahci to 3, but I'm not sure if this fixed or broke anything... That said, yes this works, and also the people talking about mscahci or something in the regedit, I couldn't find msachi on my computer. I did have, however, storahci and so I messed with that. Good luck everyone!

    Toobad said: View Post
    Hello everybody. What started out as a request for guidance ended up with me solving my own problem. Thought I may as well pass on my findings anyway just in case it helps somebody else in the same situation.

    So over the weekend, through a series of upgrades, I successfully hopped from Vista to Windows 10 Professional 64-bit. But, as is not unusual, I again managed to snatch defeat from the jaws of victory. With my new SSD loaded with Win 10 goodness, I realised I was still operating it in IDE mode. A confident dip into the BIOS to enable AHCI mode resulted in Windows then failing to start because it no longer recognised the boot drive! I'm guessing the AHCI driver wasn't loaded during installation since the mode wasn't in use. So back to IDE mode and a surf around for solutions. Plenty around pertaining to Vista, Win 7 and Win 8 involving changing registry values but nothing tangible for Win 10. However I found this alternative Win 8 workaround which I can confirm works equally well in Windows 10. I realise I'm probably teaching my Grandmother to suck eggs with this post here but perhaps somebody as equally technophobic as me, may find it useful. This is what I did:

    1. Run Command Prompt as Admin
    2. Invoke a Safe Mode boot with the command: bcdedit /set {current} safeboot minimal
    3. Restart the PC and enter your BIOS during bootup.
    4. Change from IDE to AHCI mode then Save & Exit.
    5. Windows 10 will launch in Safe Mode.
    6. Right click the Window icon and select to run the Command Prompt in Admin mode from among the various options.
    7. Cancel Safe Mode booting with the command: bcdedit /deletevalue {current} safeboot
    8. Restart your PC once more and this time it will boot up normally but with AHCI mode activated.
    9. Bask in the reflected glory of being a total Windows 10 God
      My System SpecsSystem Spec


  6. Joined : Nov 2015
    Posts : 1
    W10
       08 Nov 2015 #36

    Thank you Toobad, you have helped me big time!
      My System SpecsSystem Spec


  7. Joined : Nov 2015
    Posts : 1
    Windows 10 64 Home
       19 Nov 2015 #37

    Thanks Toobad. Your fix worked flawlessly
      My System SpecsSystem Spec


  8. Joined : May 2015
    Posts : 32
    Windows 10 14393.187
       19 Nov 2015 #38

    followed the instruction and my SSD was already running in AHCI mode.
    ran the benchmark test as mentioned by CountMike and I got these result.

    Click image for larger version. 

Name:	XMwZoHD.png 
Views:	129 
Size:	27.9 KB 
ID:	49333
      My System SpecsSystem Spec


  9. Joined : Nov 2015
    Posts : 1
    windows 10
       25 Nov 2015 #39

    Toobad said: View Post
    Hello everybody. What started out as a request for guidance ended up with me solving my own problem. Thought I may as well pass on my findings anyway just in case it helps somebody else in the same situation.

    So over the weekend, through a series of upgrades, I successfully hopped from Vista to Windows 10 Professional 64-bit. But, as is not unusual, I again managed to snatch defeat from the jaws of victory. With my new SSD loaded with Win 10 goodness, I realised I was still operating it in IDE mode. A confident dip into the BIOS to enable AHCI mode resulted in Windows then failing to start because it no longer recognised the boot drive! I'm guessing the AHCI driver wasn't loaded during installation since the mode wasn't in use. So back to IDE mode and a surf around for solutions. Plenty around pertaining to Vista, Win 7 and Win 8 involving changing registry values but nothing tangible for Win 10. However I found this alternative Win 8 workaround which I can confirm works equally well in Windows 10. I realise I'm probably teaching my Grandmother to suck eggs with this post here but perhaps somebody as equally technophobic as me, may find it useful. This is what I did:

    1. Run Command Prompt as Admin
    2. Invoke a Safe Mode boot with the command: bcdedit /set {current} safeboot minimal
    3. Restart the PC and enter your BIOS during bootup.
    4. Change from IDE to AHCI mode then Save & Exit.
    5. Windows 10 will launch in Safe Mode.
    6. Right click the Window icon and select to run the Command Prompt in Admin mode from among the various options.
    7. Cancel Safe Mode booting with the command: bcdedit /deletevalue {current} safeboot
    8. Restart your PC once more and this time it will boot up normally but with AHCI mode activated.
    9. Bask in the reflected glory of being a total Windows 10 God
    For those who are reluctant to use the bcedit command: start/power/ and then pressing shift and clicking restart will also enable a one time launch of win 10 in safe mode. You will be presented a tile interface, safe mode is under troubleshoot/startup settings en then after the boot choose the number of safe mode. (Next boot after safe is regular automatically. )
    I replaced my western digital 1TB disk by a Samsung 750GB SSD. Though successful, windows insisted to name/describe the Samsung as the original WD rotating drive. Booting into safe mode automatically adjusted the disk name/description/attributes/driver, I presume.
    Last edited by Dick99999; 26 Nov 2015 at 03:19. Reason: tile details added
      My System SpecsSystem Spec


  10. Joined : Dec 2015
    Posts : 1
    Windows 10 Enterprise
       12 Dec 2015 #40

    Success!


    Registered just to write this post. Thanks a bunch for this.

    I have a Dell Latitude E7440 running Windows 10 Enterprise on a 1 TB SSD 850 EVO
    I wasn't paying attention when I installed Windows 10 and the BIOS was set to RAID mode, even though I'm not doing any RAID. I'm going to install a Samsung 500 GB 840 EVO as a second drive to dual boot OSX Mavericks. OSX doesn't work in RAID mode, it wants to be in AHCI mode.

    Additionally my Win 10 partition is using BitLocker, so I was a bit hesitant that this would work.
    A few commands and reboots later and I'm running Win 10 in AHCI mode.

    Now on to dual-booting OSX and Win10!! Thanks again!
      My System SpecsSystem Spec


 
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