What must you do to ensure data is secure before replacing an HDD?

Ensuring data security before replacing a hard drive (HDD) primarily involves backing up any important data that is stored on the drive. This process is crucial because once the drive is replaced, all data on the old drive will potentially be lost. By performing a backup, you safeguard critical files and documents, allowing for recovery even after the hardware change.

Backing up data can be achieved through various methods, such as saving files to an external storage device, using cloud storage solutions, or cloning the entire drive if the drive is still functional. This is a necessary step not only for data security but also for ensuring business continuity, especially if the data is vital for ongoing operations.

While formatting the hard drive or deleting files may seem like steps towards securing data, they are not the most effective or safe measures prior to replacement. Formatting a drive or deleting files does not guarantee that data cannot be recovered, especially if specialized recovery methods are employed. Accessing BIOS settings is unrelated to securing the data, as it pertains more to configuring hardware settings and not directly to data backup or security.