Convert Sata Mode from AHCI to ISRT without reinstalling OS


  1. manish9009
    Posts : 41
    Windows 7, 8.1 Dual boot 64 bit
       New #1

    Convert Sata Mode from AHCI to ISRT without reinstalling OS


    Hello All,

    On One of my dell laptops....

    I tried Installing OS using IRST mode on in Sata Operations in BIOS.. but OS wasn't able to detect disks while Installing it. Even diskpart showed no disk available.

    So I installed OS after changing sata mode back AHCI ..

    I have a mSATA of 60GB and an HDD of 1 TB ...
    OS got installed on 1TB hdd....

    But the now the OS is not utilizing the SSD of Cache management.
    If I change the sata mode back to Intel Smart Response tech (ISRT) the Computer goes NO BOOT
    Is there a way I can change ISRT back ON in BIOS without Reinstalling OS..

    Any help would be appreciated.
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  3. AddRAM
    Posts : 13,576
    Windows 10 Pro x64
       New #2

    I`m no expert on those drives, but, I don`t think it`s gonna use the cache if you installed windows on the hard drive. Is it 2 separate drives ?

    As far as the other, I`m not positive but you usually can`t switch from AHCI to the other once you install the OS, but then I`ve only seen 3 options in a bios, AHCI, IDE or Raid.

    Others with the option you speak of will have to answer on that.
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  4. manish9009
    Posts : 41
    Windows 7, 8.1 Dual boot 64 bit
    Thread Starter
       New #3

    NO Problem resolved it by myself... Needed a Lettle tweak in Regedit..
    FYI.. you can switch from AHCI to other modes (if available) even after installing OS..
    Please google IRST and ISRT
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