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  • Patch Lady – KB 4099950 gets a revision

    Posted on April 19th, 2018 at 14:59 Comment on the AskWoody Lounge

    On April 17, KB4099950 was revised.  But not exactly the nicest of revisions as it demands an uninstall and reinstall:


    More information


    • This update must be installed before you install KB4088875 or KB4088878.
    • If you have previously installed KB4099950 prior to April 17, 2018 please uninstall the older version of KB4099950 and reinstall to assure you have the most recent version.

    Based on my read of this if you have already installed the April cumulative update rollup of KB4093118 you do not need to take action.

    BUT if you installed KB4099950 prior to the March updates, they are now saying to uninstall and reinstall this update.  Abbodii in the Patch management list notes that ….

    The article is a bit misleading

    KB4099950 itself has not changed at all, same version since the release

    they only added/bundled PCIClearStaleCache.exe outside the msu file, to be used by WU/WSUS, since they only handle cab files not msu

    My action plan:  I’m still a A style patcher not a B style patcher and I’m jumping over the March updates on my servers and installing the April cumulative updates on my Servers.

    If you are a B patcher (aka security only update installs only touch your machines, not the cumulative update) it’s my understanding the loss of networking never impacted the “B” security only patches.

    To me all this unfortunately reinforces that you are wise to hold back a bit in installing updates.