A: Yes. Basic download of patches and fixes only requires a free "MySiePortal" account (registration takes 3 minutes). You do not need a paid support contract.
Siemens regularly releases updates through their Support Portal. For SinuTrain 4.7, the critical "fix" is Service Pack 1 (SP1). siemens sinutrain 47 fix download
Note: This is for educational understanding only. Some users search for a "fix" to bypass the USB hardware dongle. This involves using a "soft dongle emulator" (e.g., based on WibuKey). Doing this violates Siemens’ EULA and often bricks the software after a Windows update. Do not attempt this in a production environment. A: Yes