Hi,
For us to assist you, can you confirm the following information:
- Did you receive a specific error code or message?
- Did you also recently make any change in the setting of your Surface Book 2 like installing new software or attaching new hardware?
- Have you tried checking for and install the latest update, then reboot your device?
- Have you also tried to f**orce a shut down and restart** your device?
- What troubleshooting steps have you tried so far to resolve the issue?
Regards.