zoom keeps crashing when I try to join or host a meeting

Zoom crashes, and then often crashes my laptop when I try to join or host a meeting. Seems to be a problem with video. Initially I can't do mic and video check  before joining/hosting meeting, and if I skip this then the meeting try's to open, but then crashes. Video symbol has a cross through it (I always join with video off), but my image is actually on screen. It then crashes. Any ideas? 

I'm using windows 10 home, have uninstalled and then tried with both zoom version 32 & 64