Update to Windows 10 1903 requires updated Intel Rapid Storage Technologies

Anonymous
2019-07-27T03:09:50+00:00

After receiving the notification, I updated my Dell Inspiron 5000 series with an update from Dell.  This update installed successfully as indicated:

However, the file that is blocking the Windows update, iasota.sys, is the old version that was present before I updated RST (note that other iasot*.sys files are newer):

Any idea on what can be done to workaround the problem?

Is the iaStorA.sys file obsolete and no longer needed now that the RST driver has been updated?  If yes, should I simply rename the file to iaStorA.old and attempt to update Windows again?

Do newer versions of Intel RST still use the older iaStorA.sys file resulting in the Windows Setup not recognizing that a compatible version of RST has been installed?  If yes, then do I have to wait for Microsoft to modify the Setup program so that it assesses RST compatibility by looking at something other than the iaStorA.sys version (e.g., the iaStorAC.sys version, which is the file that serves as the driver for the I/O SATA AHCI Controller?

Windows for home | Windows 10 | Windows update

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  1. Anonymous
    2019-08-18T04:16:40+00:00

    I did rename the three that were not busy. It would not allow me to Rename iaStorAC.sys.

    It was in use by the system. It was started as shown in the screen capture image

    System-Drivers-Iasto-2019-08-17.png contained in the link to the galley I posted below:

    https://postimg.cc/gallery/24f2gs8lg/

    I just added another screen capture of Windows Explorer pointing to the four

    iaStor*.sys files in the gallery. I renamed the three back to .sys instead of .old because it failed.

    The three I was able to rename were .old when I attempted to run the 1903 Update.

    The driver properties for Standard AHCI SATA Controller show it's using storahci.sys as the driver

    if I understand correctly.

    Thank you for your reply Saltgrass.

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  2. Anonymous
    2019-08-18T05:23:45+00:00

    I do not have a file named iastora.sys file on my system. I do have a iastorac.sys.

    If you look at the gallery images I posted the properties for the AHCI SATA controller.

    It shows a different driver is being used.

    I already tried the Update Driver and nothing showed up.

     I uninstalled the RST software. I have no idea why I installed it in the first place.

    Years ago I knew nothing about SATA. I read setting RAID in the BIOS does the same thing as AHCI

    but it requires a user to do RAID setup to get RAID.

    I never used RAID. The system seems to work fine without RST installed.

    I ran the Intel Driver Assist and it suggests an older driver so I am installing it now.

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  3. Anonymous
    2019-08-18T13:09:15+00:00

    I did rename the three that were not busy. It would not allow me to Rename iaStorAC.sys.

    It was in use by the system. It was started as shown in the screen capture image

    System-Drivers-Iasto-2019-08-17.png contained in the link to the galley I posted below:

    https://postimg.cc/gallery/24f2gs8lg/

    I just added another screen capture of Windows Explorer pointing to the four

    iaStor*.sys files in the gallery. I renamed the three back to .sys instead of .old because it failed.

    The three I was able to rename were .old when I attempted to run the 1903 Update.

    The driver properties for Standard AHCI SATA Controller show it's using storahci.sys as the driver

    if I understand correctly.

    Thank you for your reply Saltgrass.

    That's what I am trying to get you to understand.  My post wasn't meant to be snarky, just a simple question.  For some reason, it seems Intel stopped updating that particular driver some time ago, possibly two years.  The latest version I show is from late 2017. 

    The message, and it was a message, from Microsoft was specifically meant for that one driver.  The iastorac and iastoravc and possibly iastorv are all replaced with a new install of the IRST but the iastora is not.

    And yes, the storahci.sys driver is the Windows version and I have one system which is still running that and will not update back to an iastorxx.sys version.

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  4. Anonymous
    2019-08-18T21:27:52+00:00

    I did a search of my entire C: drive for a file named iastora.sys and it does not exist.

    This is a search for Iastor in the \Windows\System32\drivers folder:

    This is a search for storahci to list the file date if that is helpful:

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  5. Anonymous
    2019-08-18T23:29:13+00:00

    Did you get the message about iastora.sys which stopped the 1903 upgrade?

    I do not know what an iastorAfs.sys file is, I don't remember ever seeing such a thing.  Maybe you mentioned it in an earlier post..

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