SCCM Administration

I am willing to learn in-depth about patch deployment troubleshooting at client side. I am having below questions. Please help me in getting this solved.

1. What are the troubleshooting steps we need to perform when BSOD error occurred at client machine?

2. If patch deployment fails at one particular machine, what are the services and logs we need to check?

3. Please share the few common error codes about the patch deployment and troubleshooting steps involved to resolve it?

4. Any video links or articles on the patch deployment will be helpful for me. Please share the same.

Regards

Premkumar Nagaiah