To confirm, the process is:

1. Change the system date to 30 June 2023

2. Start Quickbooks

3. Change the system date back to today's date and everything works as normal.

It is only during programme start-up that the date needs to be 30 June 2023 (or earlier). Once QB Desktop has started, it does not re-check the date and so you can change your system date back to the current date and all works as normal.

Obvioudly disable all QB updates!