Complete step-by-step SCCM 2509 upgrade guide - Existing SCCM installation to the latest SCCM updates, this post is for you.

I decided to do a 2020 refresh of the SCCM Must have 2020 Tools and blog list since there's always new stuff. List includes tools and blog.

Plan for the use of PKI digital certificates in Configuration Manager.

In the post, we detail, from the certificate template to the client validation, on enabling SSL for WSUS and the SCCM Software Update Point.