I had this problem as well. A workaround that worked for me is to disable "auto hide taskbar" in the taskbar properties. After doing this the "show hidden icons" windows magically reappears. Not a...

Yeah, same here, blank spot for windows defender icon.

Workaround if its annoying:
Went into taskbar properties->Customize
Scrolled down to windows defender and changed it to "show icons and...

I'm also having some trouble pairing my phone with bluetooth. It was working in the previous build. I tried reinstalling the drivers to no avail. :(

EDIT: Reinstalling my manufacturer bluetooth...

Yes, I found the same thing after updating to the 10041 build. However I didn't notice it until I changed my account from a local account to a microsoft account. Not sure if that had anything to do...