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cdmoore1972's avatar
cdmoore1972
Brass Contributor
Dec 05, 2022
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Server 2012 R2, C:\Windows\Installer at 137 GB and counting

Server 2012 R2, patched to current --    C:\Windows\Installer\ grew 18 GB in under a month, and by slightly less than that each of the two previous months.    We have drive space to throw at that...
  • cdmoore1972's avatar
    Jan 10, 2023

    cdmoore1972 

    I found the problem / solution --

     

    I looked at the details of the files that kept appearing and found --
    .MSI file
    Title: Installation Database
    Subject: Microsoft Azure AD Connect Upgrader
    Author: Microsoft Corporation

     

    Azure AD Connect had Automatic upgrade enabled and these were the files that, presumably would upgrade me to 2.0.

     

    However, the server is running 2012 R2, which does not support Azure AD Connect 2.X

     

    There must have been some error loop that happened -- upgrade files download, install attempted, install failed, and instead of deleting the unneeded .msi files, Windows just downloaded a new one, four times a day.

     

    I disabled Automatic upgrade for Azure AD Connect and stopped getting new .msi files.
    https://learn.microsoft.com/en-us/azure/active-directory/hybrid/how-to-connect-install-automatic-upgrade

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