Is your Mac running slow? If you’ve tried everything else to get performance back to what it was, it may be time to Repair your disk. So, how and why should you do it?

In the spirit of the Hippocratic Oath ("First, do no harm"), if Apple truly felt that running Repair Disk Permissions was potentially harmful, it should say or do something about it.

There are a few final useful utilities in Apple's Disk Utility you may not be aware of. Here's how to use them the continued exploration of the macOS tool.

It won't cure all of your Mac's ills, but a quick and easy first step toward bringing a sluggish Mac back to health is using OS X's Disk Utility to repair disk permissions.

Apple has released a trio of articles that offer new or updated information regarding disk repairs. Ted Landau looks at all three.

Use Disk Utility to check software-based RAID drives. If you suspect a hardware fault, Apple Diagnostics is the ultimate check. Power on your Mac and hold d on your keyboard until it appears.

I've got a Late-2009 Aluminum iMac (27"). It crashed last night, so I restarted and it booted into the restore disk. I tried to verify/repair the disk and got: Invalid B-tree node size The volume ...

How to Repair Mac OS X Version 10.5 Leopard. Mac OS X version 10.5 Leopard provides the most recent version of the Macintosh operating system that runs on many PowerPC-based Apple computers.