Your USB drive should be able to store and boot as many operating systems as its storage capacity allows.

How can I tell if a drive can be used to boot from? For ages I couldn't work out why my P133 machine wouldn't boot of CDs even when the option was checked in the BIOS. Then I realised it was the drive ...

Most people won't ever need to do this.

[Editor’s note: This article is part of our series of articles on installing and upgrading to Lion (OS X 10.7). We also have a complete guide to installing and upgrading to Mountain Lion (OS X 10.8).] ...

A bootable Mac OS X thumb drive comes in handy when you need to troubleshoot OS issues for yourself, your family, or your friends. It’s also extremely useful for keeping your basic setup consistent ...

This article is for people whose Macs came preinstalled with Mavericks. If you can download the Mavericks installer from the Mac App Store, you should instead use our standard instructions for ...

When your PC stops booting, a boot drive is the electronic version of a defibrillator. If you can boot your PC, you can detect bad memory, chase bad sectors, change passwords, and recover data … all ...

For example, Intel Macs can boot from USB 2.0 drives; PowerPC Macs cannot (at least not without some low level fiddling, as covered in this Mac OS X Hints posting). If you are determined, despite all ...

If you have bought an Apple Silicon Mac or MacBook but need to upgrade your storage without buying a brand new device, you can set up your Mac to run from an external drive. Here's how to boot macOS ...

We all need to start from scratch sometimes and if you're building a new PC, chances are you'll need to learn how to make a bootable USB drive. This will enable you to boot your PC directly from a USB ...

Apple only sells OS X Mountain Lion as a digital download in the Mac App Store. The installer weighs in at a hefty 4.05GB, but the good news is that you can install your copy of Mountain Lion on all ...

Flash drives are convenient for making backups of files as well as copying data from one computer to another. These small memory devices are portable and only require ...