Peculiar crashing on fresh install

General
1

Hi everyone,

I’m encountering a persistent issue where the Orthanc service fails to start on clean Windows 11 Pro installations. I’ve reproduced this on both a physical workstation and a VM.

Environment & Setup:

OS: Windows 11 Pro (Freshly installed/activated).

Installation: Used standard defaults (no custom plugins or config changes).

Comparison: A similar install on Windows Server last week worked perfectly.

The Issue:

The service refuses to start immediately after installation.

Logs: The Orthanc logs are completely blank (no output generated).

Event Viewer: Showing the following faulting error:

17670306825963239178761124260907
176703068259632391787611242609071920×2560 673 KB

Troubleshooting performed:

Attempted installation with an older version of Orthanc; the result was the same.

Verified that the issue is consistent across different hardware (Physical vs. VM).

Given that this is a clean OS, I suspect a Windows-specific security setting (UAC) or a missing dependency (like a VC++ Redistributable) unique to the W11 build.

Has anyone seen this behavior recently?

2

Hi @scottuniverse

I’m running Orthanc daily on this system without any issues:
image

We do have accounts at AWS and Hetzner so if you are able to reproduce the issue on a VM of one of these providers, we might be able to reproduce it and investigate on our side.

Best,

Alain.

3

Hi Alain,

Thanks for following up with me. Sure I’ll try. What’s interesting was that I wiped the Win 11 Pro install and ran it on Server 2022 and at first it did the same thing, but then it started working.

And I couldn’t tell you what I did differently from any other install. It was as boilerplate as they come. Just standard package install, accept all the defaults.

But, I will see if I can reproduce it on your VM