Microsoft Windows

Hey all!

I'm a long time Linux user, and I've been avoiding it for the good part of the last ~15 years. Most of my Windows experience is from the XP times.

I've changed careers from agriculturing to ICT a few years ago (almost done with school), and while I can say I know my way around Linux pretty well, Windows is an alien landscape to me.

I got a job a few years ago as sysadmin (not so much, but still) / IT-support (more), and I find myself struggling to help customers with Windows / handle Windows servers. I would like to change that.

I have no intention on moving my personal computing to Windows due to privacy concerns, which is a bit contradictory to my goals, because AFAIK learning things this way is the "best" approach. It was the case with Linux for me, at least.

While i do learn Windows at my job, I'd like to compliment it with another approach, too.

Do you guys have any suggestions how I could learn Windows (the whole ecosystem, not just end-users computers)? I'd like it to be fun, as I get bored easily (breaking my Linux time and time again was really fun learning method) Maybe fire up some VMs and go from there, somehow? What do you think are the most essential skills for a Windows sysadmin? Active Directory, sure, but what else?