Worried about installing macOS Monterey beta on your Mac? Don't want to run macOS as your main system? Run it on an external drive.

Did you know that a full copy of Windows can be installed and run from a USB drive? Microsoft introduced "Windows To Go" with Windows 8 Enterprise ...

A 4GB flash drive, or 8GB for the 64-bit version. Rufus, a free utility for creating bootable USB drives. Here's how to install the OS from a flash drive: The Windows 10 experience starts here.

So, how do you install disc-based software on a Mac with a dead media drive? I have three solutions for those with another Mac.