Share via

How to install .NET SDK on my windows 11 pc

marie williams 20 Reputation points
2026-01-17T23:19:50.42+00:00

Tried to install H&R Block Tax software 2025. Error message says:

The program has encountered the error and needs to close:

Unable to start the RavenDB Server

Error:

You must install or update .NET to run this application.

I found out .NET does not exist on my Windows 11 pc.

How do I fix this?

Thanks

Windows for home | Windows 11 | Install and upgrade
0 comments No comments

Answer accepted by question author

  1. S.Sengupta 30,261 Reputation points MVP Volunteer Moderator
    2026-01-18T00:05:52.5633333+00:00

    The error indicates that H&R Block Tax Software 2025 needs a specific .NET runtime version to launch its embedded RavenDB server, but Windows 11 doesn't have that version installed on your system right now.

    Visit:

    https://dotnet.microsoft.com/en-us/download/dotnet

    Download and install the latest .NET Runtime.

    Reboot.

    Re‑run the H&R Block installer.

    1 person found this answer helpful.

1 additional answer

Sort by: Most helpful
  1. Ivan B 108.6K Reputation points Independent Advisor
    2026-01-17T23:58:55.4966667+00:00

    Hi,

    If you want the latest .NET Framework, here it is:

    https://download.microsoft.com/download/4/b/2/cd00d4ed-ebdd-49ee-8a33-eabc3d1030e3/NDP481-x86-x64-AllOS-ENU.exe

    If it's version 3.5, open Windows PowerShell (admin) and run the command below:

    DISM /Online /Enable-Feature /FeatureName:NetFx3 /All

    Restart the computer and Test.

    Give feedback if the information was useful or not.

    Thanks

    1 person found this answer helpful.

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.