Requirements for installation of safe exam browser
Only macOS 11.1 and later are supported.
MacOS operating system should be up to date.
Hard drive should have 100MB of free space.
You should have Admin Rights for the system.
No Network/System Restrictions should be present.
Anti-Virus should be disabled.
Steps to Check Safe Exam Browser Version
Open Finder.
Go to Applications and search for "Safe Exam Browser".
If you don't find "Safe Exam Browser", It means you don't have it installed. Otherwise, right click on icon and select "Quick Look". You will find Version written there.
Steps to install Safe Exam Browser
Check version of Safe Exam Browser in your system. See above for steps.
If you don't have Safe Exam Browser installed, Continue. If you have it but version is different from 3.4.1, Uninstall the current version and then continue. If you have it and its version is 3.4.1. You can skip further steps mentioned here.