Recommended for all users, particularly those running TM in Catalina, where it analyses strategies used to determine what to back up.
diagnostics
What they are, how they’ve changed, how to work out what went wrong, and how to deal with them. No Mac should ever experience a single panic.
Diagnostic, Recovery, Safe, Startup Manager, Verbose, reset SMC/NVRAM, firmware restore, Target Disk/Display, Single-User (SUM) in outline.
How to check your Mac’s hardware, interpret the results, deal with problems, and tackle tricky intermittent faults.
From hardware diagnostics to pmset and resetting the SMC, all you need to know about diagnosing wake and sleep problems.
Had my Mac frozen, or was it just very busy running tests on the boot disk? When I forced it to restart, what did the log reveal?
What should you do when you try to restart in Diagnostics Mode and can’t? And how to check and restore a Recovery partition.
More friendly, it runs checks in the background as much as possible, and has improvements in displaying results.
When should you reset your SMC and NVRAM, repair permissions, install a Combo update, or re-install the whole of macOS?
Did you know your Mac may keep a history of its activities going back for over 3 months? Here’s how to access it, and some surprising results.
