I was under the impression today that Maya kept freezing. The problem was actually because I’d had my laptop connected to an external monitor in the morning and forgot to move the windows back onto my laptop display before I disconnected the HDMI. This caused Maya to open windows on an extended display that wasn’t there so the main window became un-clickable. For anyone with a similar problem here’s how to fix it:
Also if Maya minimizes and won’t return from the taskbar turn off combine taskbar buttons and it should work again.