Windows 10: Microsoft Desktop app installer errors

  1. MSRadell's Avatar
    Posts : 115
    Microsoft Windows 10x64 Pro
       03 Dec 2017 #1

    Microsoft Desktop app installer errors

    I keep getting update errors with various designations fo are Microsoft Desktop app installer, I'm not trying to install any desktop applications from Microsoft or anybody else. This is been happening for several days.
      My ComputerSystem Spec

  2.    04 Dec 2017 #2

    A screen capture of the error message would be helpful. If you know how to use the snipping tool, grab a copy and post it to this thread the next time you see it. If you're not familiar with this tool, check out this TenForums tutorial please: Take Screenshot in Windows 10 General Tips Tutorials .
      My ComputersSystem Spec

  3. Bree's Avatar
    Posts : 8,850
    10 Home x64 (1809) (10 Pro on 2nd pc)
       04 Dec 2017 #3

    Microsoft App Installer is a built-in part of Windows 10. Its purpose is to help you install other Desktop Apps. It doen't have an entry on the Start menu, it is invoked by double-clicking on a .appx or .appxbundle file - in much the same way as the Windows Installer installs conventional programs by double-clicking on a .msi file.

    Wikipedia said:
    App Installer is a software component of Windows 10, introduced in the 2016 Anniversary Update, used for the installation and maintenance of applications packaged in .appx or .appxbundle installation packages; they are loosely relational databases with an XML app manifest.[1] The .appx and .appxbundle files contain either a Win32 or a Universal Windows Platform app, icons for the Start menu and taskbar, a virtualized version of any Windows Registry keys needed, and any other assets needed for the installed app to function.[2]

    As the App Installer is itself a Desktop App it is updated not through windows update but through the Store. Do you have any other preinstalled Store apps that have problems updating - like Mail, Groove Music, Photos, Calculator, Films & TV or the Store itself?

    I have the Store set for manual updates. I've just opened the Store and successfully updated my App Installer.

    MSRadell said: View Post
    I'm not trying to install any desktop applications from Microsoft....
    Actually you are, though you may not realise it. If you have the Store set to automatically update Apps then it will be working in the background to install updates for all the preinstalled Desktop Apps that come with Windows 10.
    Last edited by Bree; 04 Dec 2017 at 22:13.
      My ComputersSystem Spec

  4.    07 Dec 2017 #4

    What I figured when I saw the "mystery update" information in the OP's first post, Bree. Thanks for clearing things up. Given the current circumstances, it might make sense for the OP to investigate and possibly work through this tutorial: Clear and Reset Store Cache in Windows 10 Performance Maintenance Tutorials .
      My ComputersSystem Spec


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