You can always make a digital backup of your physical discs by creating an ISO file from them. The files might be used on computers without an optical drive by installing them. You may also use these files to burn a copy of your Disc in the future. You can also distribute the ISO to others. Unlike macOS and Linux, Windows doesn't come with applications that allow you to make an ISO from a physical disc. To build an ISO file in Windows, you'll need to download a third-party program. For this, we suggest Ninite as a haven for all kinds of tools. Ninite provides ISO-related software such as InfraRecorder, ImgBurn, and CDBurnerXP. Only make sure you get them from Ninite. If you get these programs from somewhere else, some of them, including ImgBurn, have junkware in their installers.