The computer's hard drive must have two partitions, including a system partition with the necessary files to start the system and a partition with the Windows 10 installation.If the feature isn't available, check the computer manufacturer for the Basic Input Output System (BIOS) or Unified Extensible Firmware Interface (UEFI) update. Computer firmware must support TPM or USB devices during startup.BitLocker is available without TPM using software-based encryption, but it requires some extra steps for additional authentication.This is a special chip that enables the device to support advanced security features. A Trusted Platform Module (TPM) chip is needed for the best result.Windows 10 Home edition has its version of BitLocker on select devices.
BitLocker Drive Encryption is available on Windows 10 Pro and Enterprise.