Reader Simon Hansen finds his Mac slow to do his bidding. He writes: My Mac has been running very slowly lately and I wanted to see how much faster it would be if I disabled its startup items. But ...

Safe mode is an important troubleshooting tool. It boots the OS in such a way that it uses the bare minimum files and apps to start and run. This can help you isolate issues, figure out where problems ...

It’s an unhappy day when you go to turn your MacBook on after an update or blissful recharging sleep — and something goes wrong. Maybe nothing happens at all. Maybe your Mac tries to turn on but doesn ...

macOS has a feature called Safe Mode that you can use to troubleshoot your Mac. You boot your Mac into Safe Mode; to do that hold down the Shift key when starting your Mac. Samir Sitaula has a shifty ...

Safe Mode in OS X is a great troubleshooting option, but on rare occasions, a system might always boot to Safe Mode. Topher, an avid Mac user for the past 15 years, has been a contributing author to ...

Clues to the causes of Mac startup problems can be found by analyzing when in the boot process the system fails. Problems may be related to the power supply, battery, hard drive, logic board, OS ...

When your MacBook hangs at startup, it could indicate a hardware- or software-related issue. Hardware-related issues can be detected by running Disk Utility. If your hard drive is failing, you should ...

With the release of Mac OS X 10.5.3, many users are experiencing issues that are potentially soluble through the use of safe booting. Safe booting not only disables potentially problematic third-party ...

The troubleshooting mode of an operating system. By pressing a particular key after the computer is turned on, it allows the system to boot with only essential components such as the OS kernel and ...