In this Appendix, we looked at troubleshooting suggestions for common issues or questions. You now know what steps you can take to attempt to fix various issues related to apps, disks and volumes, system and startup issues, network issues, and network services. Not every problem can be fixed, but these suggestions are a good starting point for you to start troubleshooting; in many cases, the problems will be solved. Some of the recommendations are indeed for advanced users, especially when you need to interpret log reports or use the Network Utility, Terminal, or Console apps.
If you feel that you cannot understand those reports, feel uncomfortable manipulating some of the tools or hardware described in this Appendix, or if you still have problems despite trying all these suggestions, a good idea would be to contact Apple Support (https://getsupport.apple.com/), an Apple Store (https://www.apple.com/retail/storelist/), or an Apple Authorized Service Provider (https://locate.apple...