Installed a big update for MS Office yesterday and also a big update which popped up for MS Visio (which I'd never heard of). Installed all of them on 2 work laptops and could not connect to a WiFi network afterwards. Tried the same updates on my own laptop and the same thing has happened. Had to do system restores in the end. Very annoying. Anybody else had issues with this latest update in the last couple of days?