What good Windows administration courses do you know?

Question

System administration

I am self-taught, I work as an enikeem in a small office. For a year of work, I feel that I have grown to the maximum that you can get at such a job. I feel that there is not enough systematization of knowledge. Recommend good courses/books/channels on YouTube on Windows administration and related topics. Thanks in advance

Answer 1

Kirill Semaev in youtube look

Answer 2

Microsoft win server administration course. For 2008 R2 and 2012 R2 can be found online. Newer in authorized training centers. There are also books.