They never should've used it in the first place.
Any program that takes over control of your devices (EG: mic & webcam) & prevents you from using them as you see fit (EG: not at all) is by definition malware that doesn't belong anywhere near the machine.
You want to make sure they're not cheating, fine, but requiring the installation of what amounts to destroying their privacy in the name of your security is the absolute wrong way to go about it.
What message do you think that sends? What lesson will the students learn from the experience? That their privacy isn't worth two shakes of a lamb's tail, that they can't be trusted not to act like mature adults, & that they should just suck it up & deal with it like the good little sheep you want them to be? What kind of adults do you want to train? What kind of future do you want to leave for the children that will then be in charge of your retirement home? How well do you think they'll treat you once the power shoe is on the other foot?
Just don't use the software, it's not worth it & never has been.