You can find boot disk images on repositories such as AllBootDisks .

: Users could download the Portlock Linux ISO, add their specific license file using ISO editing tools (like ), and then burn it to a CD. Experts Exchange Downloading the ISO

If you are looking for more current general-purpose diagnostic tools, consider these active projects: Ultimate Boot CD (UBCD)

If you are looking for a general-purpose diagnostic and recovery boot disk for modern Windows systems, the following alternatives are more commonly used today: