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
    2019-07-27T19:38:22+00:00

    Hi,

    After you uninstall, if needed, you restart of course to finalize the procedure.

    Next, you rename the four files, and you can update windows.

    Renaming is a security for you, when you'll install the last RST (after the Windows 10 update), the four files will be the last and you'll be able to delete the renamed files.

    Regards,

    Marcel

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  2. Anonymous
    2019-07-27T19:14:32+00:00

    Hi Marcel,

    Seems like a very elegant solution and is consistent with my thought that iaStorA.sys is either not needed or that the version I have does not need to be updated when RST is updated.  But, I need a bit more info to implement it.

    I just tried the following:

    1. uninstalled RST (temporarily ignoring the prompt to restart for the change to take effect)
    2. renamed the 4 iaStor*.sys to iaStor*.old
    3. restarted computer for changes to take effect

    Unfortunately, the computer would not restart so I had use a restore point to get it back.

    Before I try again, please answer the following:

    1. do I restart immediately after uninstalling RST and before renaming the iaStor*.sys files?
    2. is changing .sys to .old an okay rename?
    3. do I ignore the instruction to restart and install Windows immediately after steps 1 and 2 of your procedure?
    4. whether I restart at any point, should I rename only 3 of the 4 iaStor*.sys files, leaving iaStorAC.sys alone (since it is the driver being used by I/O SATA AHCI Controller)?

    Thanks very much for your continuing assistance,

    Maurice

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  3. Anonymous
    2019-07-27T17:34:17+00:00

    Hi Maurice,

    I have got the same problem as you, so :

    1. I have uninstalled Intel RST
    2. Renamed the four files iaStor*.sys
    3. Installed the windows 10 update
    4. Installed the last Intel RST (https://downloadcenter.intel.com/product/55005/Intel-Rapid-Storage-Technology-Intel-RST-)

    This works for me.

    Regards

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  4. Anonymous
    2019-07-27T09:06:31+00:00

    "Update to Windows 10 1903 requires updated Intel Rapid Storage Technologies"

    Sorry, I have to disagree. I have the v.1903 update, and I do not have Intel RST. In fact, when I did my original clean install of Windows 10, I did not include RST, even though it originally shipped with my computer.

    If you don't have a RAID setup, and don't plan on having one, you don't need RST.

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  5. Anonymous
    2019-07-27T07:12:41+00:00

    Hi Maurice

    My name is Andre Da Costa; an Independent Consultant, Windows Insider MVP and Windows & Devices for IT MVP. I'm here to help you with your problem.

    Based on information I researched, the Intel installer is not actually updating the iastora.sys file in c:\windows\system32\drivers like it should. It's remaining with the old version and that is what is blocking the upgrade from being successful.

    My recommendation is to block the upgrade for the time being and wait a while until it is actually fixed or download and install the version 17.5.1.1021 of the driver to see if that works.

    Just to make sure it works, enable the hidden Administrator Account then install the driver.

    Proceed to attempt the upgrade again using the Update Assistant.

    Step 1:

    Open Start

    Type: cmd

    Right click CMD

    Click Run as administrator

    At the command prompt, type:

    net user administrator /active:yes

    Hit Enter

    Close command prompt, restart, then try signing into the Administrator account.

    Sign in.

    Step 2:

    Download Intel RST 17.5.1.1021

    https://downloadcenter.intel.com/download/28966...

    Proceed to install it.

    Step 3:

    Go to the following page then click 'Update Now'

    https://www.microsoft.com/software-download/win...

    See if it works. If not, wait a while then try again.

    Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

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