Windows 10: Clone HDD to SSD (switch from RAID to AHCI)

  1.    4 Days Ago #1

    Clone HDD to SSD (switch from RAID to AHCI)

    Hi there,

    When the time came to upgrade from Windows 7 to 10 I decided to run the upgrade then shortly afterwards, to alleviate some outstanding issues, I went ahead and did a fresh install to 10. At the time I had a spare 60Gb SSD going unused so I decided to attempt to make use of Intel's Smart Response Technology to use the SSD as a cache for my HDD. After a long time trying various methods posted online I was never able to get my SSD to work with Intel SRT. However, as part of this process I had to carry out the initial OS installation in RAID mode (although actual RAID has never been implemented).

    Whilst I have made use of the SSD as ExpressCache (with limited benefit as far as I can perceive) I have now acquired a larger SSD which would be suitable as a replacement for my HDD as a main OS drive. Basically I would like to do the following:
    1. Clone the HDD to the SSD - I remember when I had Windows 7 and was looking at cloning another machine to an SSD there was something mentioned about the block size on a HDD being different to those used on an SSD and it wasn't a simple process of just cloning a HDD to SSD. Can anyone shed some light on whether this is still the case.
    2. In the process I want to drop the RAID mode, which I never used in any case, and just run in AHCI if possible. I have a feeling RAID has been responsible for some other issues and BSODs. I seem to remember this might be possible by making some tweaks in the registry but that might only be applicable to IDE>AHCI and vice versa. Again, any advice is appreciated.

    Thanks in advance for any help.

      My ComputerSystem Spec

  2.    4 Days Ago #2

    The Block size is determined usually by the file system. If you Formatted your HDD NTFS and left it at defaults, and the Used HDD capacity is no larger then the SSD capacity, it will seamlessly clone over.
    But, if the Windows 10 installation was done using RAID instead of AHCI, it may very well BSOD when trying to boot from the cloned SSD.
    If you had AHCI and did a Clean install of 10 and then added your small SSD and changed it to RAID, that could be why you were having BSOD and other problems.
    If the mode was set to AHCI when you installed 10 , If you enable AHCI now, cloning should go smooth.
      My ComputerSystem Spec

  3.    4 Days Ago #3

    Hi Spunk,

    The HDD is NTFS but the HDD is 1TB whilst the SSD is only 750GB (though I'm only using about 200GB of that). As far as installations - this fresh W10 installation was done specifically with RAID mode enabled, purely for the SRT to work as that is a prerequisite for it to function (as it happens it always failed when trying to enable it in Intel's RST utility). Not quite sure where that leaves me.
      My ComputerSystem Spec

  4.    4 Days Ago #4

    What is listed under IDE ATA/ATAPI controllers in device manager?
      My ComputerSystem Spec

  5.    4 Days Ago #5

    Hi NavyLCDR, I get Intel Chipset SATA RAID Controller under my storage controllers - I don't get any entries for IDE ATA/ATAPI controllers.
      My ComputerSystem Spec

  6.    4 Days Ago #6

    qwikpix said: View Post
    Hi NavyLCDR, I get Intel Chipset SATA RAID Controller under my storage controllers - I don't get any entries for IDE ATA/ATAPI controllers.
    Do you have an actual raid array set up now? If not, I think you would be OK to just switch to AHCI in UEFI/BIOS now before cloning. Windows 10 should pick up on that an initially install a standard AHCI controller driver under ATA/ATAPI controllers which you can then manually switch to the proper Intel ACHI controller driver. The most that would happen is Windows would not boot and you switch the controller back to RAID in UEFI.
      My ComputerSystem Spec

  7.    3 Days Ago #7

    Hi NavyLCDR, that's correct, an actual RAID array has never been set up, I believe the Intel SRT uses the underlying RAID tech to implement the SSD as a cache for the HDD so that's why the installation was done with the BIOS set to RAID. I'll give it a try switching over on the current installation and see what happens - I seem to recall running a repair with the installation media after the switch can take care of it. After that I will do the clone to the SSD - should I resize my partition down from 1TB to 750GB to match the SSD before I carry out the clone?
      My ComputerSystem Spec

  8.    3 Days Ago #8

    qwikpix said: View Post
    After that I will do the clone to the SSD - should I resize my partition down from 1TB to 750GB to match the SSD before I carry out the clone?
    No, you can do the resizing during the cloning.
      My ComputerSystem Spec

  9.    2 Days Ago #9

    Hi there

    Before switching away from RAID mode copy contents of any data files you need just in case you lose the lot when switching away from RAID - copy to backup HDD or whatever --I think you are on the right track to remove the hardware RAID --cheap consumer grade RAID controllers are far more inferior to native AHCI mode and also if you want it you can use Software RAID which is far superior to those cheap controllers in any case.

    The controller ought to have in its setup (either in BIOS or in software driver which you should have with the card) a mechanism to enable RAID and the RAID level you want or an option to disable it completely.

    If you did the initial install in RAID mode you'll have to do it again in AHCI mode. BTW the FREE upgrade to W10 is STILL working so you can simply install a basic W7 / W8 system then apply the FREE upgrade.

      My ComputerSystem Spec


Related Threads
I just got an alienware 13 r3 laptop w/ win 10 pro pre-installed. The hard drive is one 500gb ssd drive. I wanted to partition the drive so that my OS was on a 140gb partition, and then the remaining volume for a media drive. I wasn't able to...
WIndows Reinstall Switch From RAID to AHCI in Installation and Upgrade
Hello all, My laptop (specs listed in other under system specs) uses a Samsung PM830 SSD. Samsung Magician says it doesnt support this drive, even though the online documentation says it does. The only reason for this that Ive been able to find...
I built my system with a Samsung 950 PRO m.2 NVMe SSD as the Windows 10 boot drive (C:), plus a pair of old-fashioned SATA-III hard drives configured in RAID1 as my data drive (D:). The SSD is plugged directly into one of the m.2 slots on my...
AHCI or RAID in Drivers and Hardware
Hi. I have just purchased a Dell XPS 15 Laptop with a single 512gb SSD. I am wanting to clean install Windows 10 but am unsure whether to place the BIOS in RAID or AHCI? I have heard the read/write SSD speeds are similar once in windows. Would...
Solved Switch from AHCI to RAID in Drivers and Hardware
I have Windows 10 Pro installed on an SSD in AHCI mode. I would like to add a RAID 1 array to this system for storage but I understand some registry tweaks must be made before I can change my BIOS from AHCI to RAID mode or I'll end up hosing...
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 19:52.
Find Us