The first thing that you need to do when facing issue with Macbook Pro is to start Macbook Pro safe mode. Switching to safe mode is the first step to troubleshoot issues with PC or laptop irrespective of its OS type and version.
With safe mode “ON”, the Mac starts without starting any other program. So, if the problem is caused by any other application other than the OS, you can test third-party program is causing the trouble instead of the Macbook Pro as a whole.
When the Macbook Pro is in its Safe Mode, several of its features get restricted. In order to use them, you need to restart the work-station once again. Read more about Use Macbook Pro safe mode to Fix Issues …