Disc encryption software protects data at rest by encrypting whole disks or disk volumes with pre-boot authentication, recovery-key workflows, and OS-level or volume-level encryption controls. This buyer’s guide covers FileVault, Sophos SafeGuard Encryption, GiliSoft Full Disk Encryption, Jetico BestCrypt Volume Encryption, DriveCrypt, and Gpg4win alongside ESET Full Disk Encryption, Check Point Full Disk Encryption, WinMagic SecureDoc, and Rohos Disk Encryption.
The practical differences show up in how each tool handles recovery-key operations during endpoint restore and ownership transfer, how recovery materials are tracked during incidents, and how deployment fits Windows-only fleets versus macOS-first environments. The guide frames selection around operational fit for helpdesk workflows, admin governance for encryption enablement, and the encryption scope each product actually controls at the disk or volume layer.