unable to open base camp after installation get error code 0xc000007b

same problem

Installed an older version and it works but not a permanent fix

was able to run legacy version 4.2.5 downloaded from here: https://www8.garmin.com/support/download_details.jsp?id=7161

.NET and DirectX reinstallations did not solve the issue on Windows 10

thanks for the advice! 

Same problem here. I tried everything even reinstalling windows 11 (64), .NET and DirectX reinstalled, but problem persists.

Now running legacy version 4.2.5 but that is not a real solution. 

If 4.2.5 works, you can try updating BaseCamp to newest version. If .net 3.5 sp1 is missing, try installing it from microsoft.

Thanks BTLAAKE. I've tried that several times, but unfortunately with the same errormessage. And now I can't install 425 anymore either.  

Sorry I  made things worse.

In the past, users have found that the uninstall does not remove all traces of the software.  I would suggest contacting support for instructions to cleanup the registry (backup first) and any other folders/files for BaseCamp.  Hopefully that will get you back to a state where 4.2.5 will intall.

This was the solution. Thank you very much.

glad it helped