Validating backups is an operation that checks the possibility of data recovery from a backup. Note that while successful validation means high probability of successful recovery, it does not check all factors that influence the recovery process. If you back up the operating system, only a test recovery to a new virtual machine can guarantee success of the recovery.
In Acronis vmProtect 8 you can validate a Location, an Archive or a Recovery Point. Validation of a recovery point imitates recovery of all files from the backup to a dummy destination. Validation of an archive will validate all recovery points stored in this archive. Validation of a location will check the recovery of all archives stored in this location.