I am attempting to run the Windows Update Troubleshooter and it fails with an error on msdt.exe. I am running this from the GUI (running it from the command line has not worked for some considerable time, hence using the GUI). I click on the Windows update troubleshooter and click 'Run the troubleshooter' and get this error:
Also - I've tried to run other troubleshooters and each one fails.
More importantly, NO troubleshooters work with Windows Server 2019 - ALL fail with this error. I realise that the command-line troubleshooters are broken and have been for years inside Windows 10 and Windows Server 2019. But now they also fail from the GUI.