How to check your Mac’s hardware, interpret the results, deal with problems, and tackle tricky intermittent faults.
Some simple card tricks using TextEdit files demonstrate that most current apps don’t use new features in APFS. But they’re still safe and efficient.
How to run Apple’s diagnostic software to work out whether your Mac has a hardware fault – and how to interpret its error codes.
For the last 15 weeks, this iMac has been freezing sporadically. I have run out of ideas, and hope that 10.11.6 fixes the bug.