To reinstall Windows or access repair tools loaded on your Windows DVD, you’ll need to boot the PC from the optical drive instead of the hard drive.

Optical drives let your computer read and interact with discs like CDs, DVDs, and Blu-rays. While nearly every computer had them a few years ago, they're rare to see on new computers now. If you need ...

Optical storage can last a century, give faster access to data, and is backward compatible with earlier optical technology, yet disk drives and tape rule in long-term storage. Optical media is the ...