Windows 10: old defender UI broken in Fall Creators Update 1709 Solved


  1. Posts : 7,386
    10 Home x64 (1803) (10 Pro on 2nd pc)
       20 Oct 2017 #1

    old defender UI broken in Fall Creators Update 1709


    Since the upgrade to Fall Creators update the old style Defender UI MSASCui.exe produces an error if you try to look at Quarantined items on the History tab.

    Error loading type library/DLL
    Error code: 0x80029c4a

    I'm not the only one, apparently. Also reported here...

    JohnSanders1 said:
    My problems did not start until AFTER the Windows 10 Fall Creators Update and the following two "Quality Updates"
    https://answers.microsoft.com/en-us/...cc78197?auth=1
      My ComputersSystem Spec


  2. Posts : 7,386
    10 Home x64 (1803) (10 Pro on 2nd pc)
    Thread Starter
       20 Oct 2017 #2

    I have found that it can be made to work, but only if it is run as Administrator. Must be a permissions snafu.
      My ComputersSystem Spec

  3.    20 Oct 2017 #3

    Fix MSE Utility is a portable utility which will reset all the Registry and other settings of Microsoft Security Essentials to its default value. This utility will restore all its registry values & service settings to known good defaults, without re-installing MSE. It also re-registers the concerned .dll and .exe files, required to run MSE properly.
      My ComputerSystem Spec


  4. Posts : 7,386
    10 Home x64 (1803) (10 Pro on 2nd pc)
    Thread Starter
       20 Oct 2017 #4

    FreeBooter said: View Post
    Fix MSE Utility is a portable utility which will reset all the Registry and other settings of Microsoft Security Essentials to its default value...
    And this would help Defender how exactly?

    I do not have MSE installed, I couldn't even if I wanted to. MSE is not compatible with Win10 (or Win8, come to that) and cannot be installed. This utility was written in 2009 for Win7+MSE. Who knows what registry settings it could damage for Win10's built-in Defender.

    No, this seems to be a problem that Microsoft introduced in 1709. They appear to have changed permissions somewhere (probably in the registry) and forgot to update the old UI. It is reproducible on all machines I have updated to Fall Creators Update. It requires a fix from Microsoft in (the next?) cumulative update.

    The are several possible reasons when you receive an error code 0x80029c4a. Corrupted system files, incorrect registry keys, or driver issues are the main causes for these error types.
    https://answers.microsoft.com/en-us/...7-1b0834082059
    Last edited by Bree; 20 Oct 2017 at 09:28. Reason: added error code meaning
      My ComputersSystem Spec


  5. Posts : 7,386
    10 Home x64 (1803) (10 Pro on 2nd pc)
    Thread Starter
       08 Dec 2017 #5
      My ComputersSystem Spec

  6.    09 Dec 2017 #6

    This is a useful tip. I just created a shortcut in my user account and confirm it now works fine.
      My ComputersSystem Spec


  7. Posts : 7,386
    10 Home x64 (1803) (10 Pro on 2nd pc)
    Thread Starter
       09 Dec 2017 #7

    Steve C said: View Post
    This is a useful tip...
    If you have had the 6th Dec. update to the malware engine you no longer need to run as administrator, it works fine without that now.

    Check its Help > About to find the version, the update takes you to: Antimalware Client Version: 4.12.17007.17123
      My ComputersSystem Spec


 

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