Start up in Safe mode, and it’s stable; restart in ordinary mode, and your Mac is in trouble. How to identify and fix the problem.
Coupled with FileVault’s whole disk encryption, this can stop others from accessing your data. But there are disadvantages too.
All the useful key combinations, arranged by function rather than keys.
Enjoy being a computer owner-user-maintainer while you can: those days are NUMbered.
How to run individual components from sysdiagnose.
Looking in greater detail at what you can get from running sysdiagnose.
When you have tried everything else, this shell command will throw the book at your problem, running all the diagnostics it can.
What to do when your Mac won’t start up, and is acting dead, or at least mortally wounded.
The moral is to see a doctor when you have pain in the gut, not to consult a linguist.
I sat in front of my iMac, only to discover that the Internet was gone. The right lights still shone on my modem-router, but no matter where I pointed Safari, I got a near-instant error.