TT won't run after installation

[sschall]

The install completes with the last screen Do my Taxes.   Click on that button and the whole thing dies.  No warning or feedback at all, just dies.

Windows event viewer data

Log name:  STSTEM           

Source:     WindowsUpdateClient                            Logged:             1/9/2026

Event ID:  20                                                                Task Category: Windows Update Agent

Level:       Error                                                            Keywords:         Failure, Installation

User:       SYSTEM                                                             

OpCode: Installation

Any ideas on how to fix this?  I've tried all the suggestions, none work.  I'm the administrator of this machine.  And I've tried run as administrator.  I've made suggested updates to Internet Options.

Any ideas?  Thanks!