A macOS Catalina USB install drive is a great tool to have on hand to for quick and easy macOS 10.15 reinstalls. We show you how in this video tutorial.

This tutorial shows you how to create a bootable macOS Big Sur USB installer drive, which can be handy for performing fresh installs on your Mac.

Turn a spare USB Flash drive into an emergency Mac OS X recovery boot disk in case you need to fix your Mac.

I have an external USB drive formatted for Mac OS X with 200 GB of data that I need to transfer to a Windows machine.