Reset Everything On Mac

First step is before erasing or reset anything on mac recover your back up because you have so many files in your mac that is very important in your life as we know for recovering your data so many ways like can take back up through your icloud account if there is much space for your files or can transfer through hard drive if you have, second step is after taking your back up delete you5r all personal files from your mac but do this step in a smart way because if you do this in a hurry you can phase any problem in future, next turn off the file vault option from your account reason of doing this after turn off this option you are safe from more negative or harassment outcome, now remove your icloud account from your mac why this because nobody wants to use your account so ou have to sign out from your account after these all steps now you are ready to reinstall macos and for reinstallation of mac os just go to mac os ulities menu there you mind an option of reinstall os and you have completed all steps.