# How to recover from this kind of startup error without reinstalling Mathematica? [duplicate]

How to recover from this kind of startup error without reinstalling Mathematica?

• The instructions say "Contact technical support ... for more information". Have you tried that? Nov 18 '17 at 23:20
• I don't contact them. I don't have a service package plus, I tried in the past and the turnaround time is just too long for me. If I can't figure out by end of day, I'll just reinstall. Nov 18 '17 at 23:21
• Before reinstall, try deleting the folder /Users/<usrname>/Library/Mathematica and open Mathematica. If that doesn't work, then reinstall. Nov 18 '17 at 23:41