In Acronis Backup 11.7 disk backup functionality has been reworked to improve performance and stability. These changes make bootable media of version 11.5 incompatible with backups created in version 11.7.
Do not restore Acronis Backup 11.7 archives with version 11.5 bootable media. Restore with an old media fails and leads to data loss on the target disk.
Create a new bootable media with the current build of Acronis Backup 11.7, see this step-by-step guide. We recommend keeping your product and bootable media up-to-date: make sure automatic check for updates is turned on, alternatively look for the latest build in your account on Acronis website. For restore operation use a bootable media created with the current build of the product. You can download the media in your account.