.NET (8) installation does not wait to be finished

[peter-sabath]

Version

latest NuGet Package (2.5.2)

Variant

GUI (Graphical User Interface)

Platform

.NET 8.0 / WIndows 10

Steps to reproduce

I de-installed the .NET 8 (Desktop) Runtime, and removed the 8.0.x folder in the shared runtimes. I also removed the registry keys at HKLM\SOFTWARE\WOW6432Node\dotnet\Setup\InstalledVersions\x64\sharedfx...
Now when starting the App, the Bootstrapper detects the runtime as missing, downloads it, and starts the installer. I get the UAC prompt, but as soon as I accept the installer closes and the App/Bootstrapper complains about the missing runtime. The expected folders were not recreated, I need a manual "repair" install to get the runtime working again.

Details

Expected:
I expect the application start to be waiting until the installation is done. especially according to your flowchart, the required runtime should not be detected after install.

Actual:
I get the message box complaining about the missing .NET 8 runtime and listing the other existing ones.

Checklist

• I have looked through existing issues to make sure that this bug has not been reported before
• I have provided a descriptive title for this issue
• I have made sure that this bug is reproducible on the latest version of the package
• I have provided all the information needed to reproduce this bug as efficiently as possible
• I have sponsored this project

[peter-sabath]

The same problem is also present if I use the CLI-based version same text in console like in the message box

- Target: O:\adx-net8\bin\PublishMyApp\MyApp.dll
- Arguments: [/install]
- Status: -2147450730
- Error: You must install or update .NET to run this application.

App: O:\adx-net8\bin\PublishMyApp\MyApp.exe
Architecture: x64
Framework: 'Microsoft.NETCore.App', version '8.0.0' (x64)
.NET location: C:\Program Files\dotnet\

The following frameworks were found:
  2.1.30 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  6.0.28 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  7.0.17 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]

Learn more:
https://aka.ms/dotnet/app-launch-failed

To install missing framework, download:
https://aka.ms/dotnet-core-applaunch?framework=Microsoft.NETCore.App&framework_version=8.0.0&arch=x64&rid=win-x64&os=win10```

[Tyrrrz]

Hmm, I could not reproduce this issue. Does the same happen to you with .NET 7?

[peter-sabath]

Yes, the same happens to me when targeting .NET 7. Is there a good way to properly uninstall a ,NET Runtime you know of?
.NET 7 is not even listed in "Apps & Features".
But further tests point into the direction that it is not a problem of waiting for the process to finish, but with the installation itself.
If I remove the Registry keys and folders and then manually running the installer it behaves equally strangely. It installs without writing the files and finishes immediately. Only doing a repair installation gets the files back.

I thought I could test it on my (dev) machine, but it seems the only way to test it is to have a clean VM, that needs a data reset for a new test. I hoped to get around that.

[Tyrrrz]

You could try this: https://learn.microsoft.com/en-us/dotnet/core/additional-tools/uninstall-tool?tabs=windows

[peter-sabath]

After some more testing, especially with the Windows Sandbox, there is no problem. So it was mostly related to testing on a development machine.
Sorry for bothering you.