Yesterday I got an alert to install an update for my Samsung SCX-4300 printer on my MacBook. After updating, the scanner function of the printer became disabled and I can’t make it work. It was working just fine before the update! Was it malicious software? I haven’t set the time capsule and I cannot go back to a previous phase of my lap top. And I don’t know how to uninstall it on MacBook. Please, let me know!