Roon client won't start correctly after Windows 11 update

Roon Core Machine


Roon Core is running on an old MacBook Air. I

Networking Gear & Setup Details

DAC is connected by wire to Netgear ORBI satellite.

Connected Audio Devices

Roon, on MacBook Air, communicates wirelessly with PS Audio Jr DAC

Number of Tracks in Library

200 CDS, plus Tidal

Description of Issue

The Roon Client running on brand new Dell laptop (XPS 17 9720), running Windows 11, suddenly will not start correctly. The error message is: β€œThe application was unable to start correctly (0xc0000135). Click OK to close the application.”


Windows 11 was recently updated, via these updates:
KB5013943 cumulative OS update
KB5013628 (.NET framework)
KB5014329 (.NET security)