bootabledisk

noun
UK /ˈbuːtəbəl dɪsk/
US /ˈbuːtəbəl dɪsk/

A bootable disk is a disk that a computer can use to start up.

The technician inserted a bootable disk to repair the computer.


OTHER MEANINGS

2. A storage medium containing the files needed to launch an operating system.

She created a bootable disk from the downloaded image.

3. A recovery tool used to troubleshoot a computer that will not start normally.

Keep a bootable disk handy in case your system crashes.

4. Any removable media configured to be recognized by a computer's firmware at startup.

The old floppy became a bootable disk for the legacy machine.