Which action should be avoided when caring for removable storage media?

Removing the media when the drive indicator light is on is a critical action to avoid because it can lead to data corruption or loss. The indicator light typically signals that the device is actively reading or writing data to the storage medium. Interrupting this process by physically removing the media can cause incomplete data transfer, which jeopardizes the integrity of the files stored on it.

In contrast, storing the media in a protective case, cleaning it regularly, and keeping it away from extreme temperatures are all best practices that help ensure the longevity and reliability of removable storage media. Storing in a protective case prevents physical damage, cleaning helps maintain the surface and data connection, and avoiding extreme temperatures protects the media from potential electronic and mechanical degradation. Therefore, the correct action to avoid is removing it while the indicator light is on, as this practice safeguards data integrity.