TurboTax won't execute on Win11Pro

After installation of TurboTax 2024 on a new laptop running Windows 11 Pro the program is executed and a window pops up indicating it is "checking server for latest updates". The window flashes up for a brief instance then disappears. The program never starts.  I start Task Manager and TurboTax isn't listed as a process that is running, it isn't listed as an App running or a Background Process running. I'm logged on as an administrator and have tried "run as administrator" numerous times. Win11 is fully up-to-date. Tried running in compatibility mode; nothing. Any ideas?