Is your Mac about to crash? Here's how to create a bootable USB flash drive with a working version of macOS, so you can access your hard drive in the event of a glitch.

Some docks and adapters allow the SuperDrive to work, but it might be cheaper to just buy an up-to-date CD/DVD drive.

If you need a USB drive that's widely compatible with different devices, you may want to format it to FAT32. Here's how to do so on Mac and PC.

Mac 911 How to format a USB thumb drive for both Mac and Windows The Mac/Windows-compatible ExFat format allows larger file sizes than the old FAT32.

Apple provides security features in macOS to give apps access to files on your local storage and removable drives. Here's how to configure them.