Difficulty: Medium
We identified several AMIs in your account that are not in use. If an AMI hasn’t recently been used, it can safely be deregistered. The underlying resources of that AMI (i.e. EBS snapshots) can then be archived or deleted by other recommandations.
Selection Criteria
It was not used to start any currently-running instance
It has not been used to start an instance in the last 31 days
It was created more than 31 days ago