According to event viewer, msiexec.exe is crashing. I've tried repair the insaller from the web. Running the installer with a log produces:
====== Starting logging of "C:\Users\tjohnson\Desktop\OMNIClientSetup.exe" ====
OS Version: 11.0.26100 SP0 (workstation) [x64]
CPU: Intel(R) Core(TM) i7-9750H ...