This usually means the ISO isn't bootable or the partition isn't set to "Active."
: A bootable ISO file used for virtual machines or burning to a CD. ms dos 622 iso work
Some community-made ISOs combine the floppy installers into a single bootable CD image. These are convenient for VMs but may require specific drivers to see the CD-ROM drive after booting. 2. Virtual Machine Setup If you are using VirtualBox Storage Controller: This usually means the ISO isn't bootable or
Opens a basic text editor for modifying files like CONFIG.SYS . HELP Provides a built-in manual for all DOS commands. 6. Modern Use Cases ms dos 622 iso work