Mac computers come with a pre-installed operating system. However, there may be times when you need to start your computer from a CD. For instance, if you want to reinstall the operating system or if there is a problem with your computer and you need to troubleshoot it, you can start your computer from a CD.

There are a few ways to start your Mac from a CD. The first option is to restart your computer and hold down the C key while it starts up. This will boot your computer from the CD.

If you have a newer Mac …