Acronis True Image 2021 is a popular backup and disaster recovery software that allows users to create exact copies of their hard drives, files, and folders. The software is designed to provide comprehensive data protection, ensuring that users can recover their data in case of a disaster, such as a hard drive failure, virus attack, or accidental file deletion. One of the ways to install Acronis True Image 2021 is by using an ISO file, which is a type of disk image file that contains the installation files for the software.