Microsoft .NET Host -8.0.13 (x64) Popup

Steve Bailey 20 Reputation points
2025-03-02T14:53:00.7466667+00:00

I keep getting a random popup with the header Microsoft .NET Host - 8.0.13 (x64) stating "The feature you are trying to use is on a network resource that is unavailable."

It further states "Click OK to try again, or enter an alternative path to a folder containing the installation package 'dotnet-host-8.0.11-win-x64.MST." "Use Source: C:\ProgramData\Package Cache{362B4D0D-8438-44DA-86B2-FEC44E000FCA}v64.44.23191". When I search for this folder it does not exist.

This popup starting happening, even when the computer is idle, shortly after installing Microsoft 365. How do I stop this popup from happening 15 to 20 times a day?

Developer technologies | .NET | .NET Runtime
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  1. Jiachen Li-MSFT 34,221 Reputation points Microsoft External Staff
    2025-03-03T07:57:11.9+00:00

    Hi @Steve Bailey ,

    Have you ever installed any other version on your computer. NET 8?

    If there is, try to fix/reinstall the old version first and then install .NET Desktop Runtime 8.0.13.

    Best Regards.

    Jiachen Li


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  1. Anand George Muthirakalayil 0 Reputation points
    2025-03-22T00:11:13.3133333+00:00

    It sounds like you're dealing with a recurring .NET installation/repair popup that's trying to access files that don't exist. This is typically caused by a corrupted or incomplete .NET installation that Windows is repeatedly trying to repair. Try the below

    1. Download the .NET 8.0 Runtime manually:
    2. If that doesn't work, try a complete repair:
      • Open Control Panel
      • Go to "Programs and Features"
      • Find ".NET Runtime 8.0" entries in the list
      • Right-click and select "Repair" or "Uninstall"
      • If you uninstall, download and reinstall from the link above
    3. Check for Windows Updates: Install any available updates, especially those related to Microsoft .NET
    4. Fix the Package Cache:
      • Run: dism /online /cleanup-image /restorehealth
      • Then run: sfc /scannow

    If you continue to experience this issue, it might be related to how Office 365 is interacting with .NET. In that case, you could also try repairing your Microsoft 365 installation through Control Panel > Programs and Features.

    This should stop those annoying popups from appearing throughout the day.

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