![]() With the constantly increasing of modern people’s awareness of privacy protection, data/file encryption has become an indispensable part of our lives. It's recommended that the system drive be approximately 350 MB in size.Top 12 Best Free File Encryption Software for Computer in 2019 For BitLocker to work, the system drive must not be encrypted, must differ from the operating system drive, and must be formatted with the FAT32 file system on computers that use UEFI-based firmware or with the NTFS file system on computers that use BIOS firmware. The system drive contains the files that are needed to load Windows after the firmware has prepared the system hardware.It must be formatted with the NTFS file system The operating system drive (or boot drive) contains the operating system and its support files.The hard disk must be partitioned with at least two drives: Use the tool MBR2GPT before changing the BIOS mode, which prepares the OS and the disk to support UEFI. Installed Operating System on hardware in Legacy mode stops the OS from booting when the BIOS mode is changed to UEFI. For added security, enable the secure boot feature. The Legacy and CSM options must be disabled. Devices with TPM 2.0 must have their BIOS mode configured as native UEFI only. TPM 2.0 is not supported in Legacy and Compatibility Support Module (CSM) modes of the BIOS. The system BIOS or UEFI firmware (for TPM and non-TPM computers) must support the USB mass storage device class, including reading small files on a USB flash drive in the pre-operating system environment A computer without a TPM doesn't require TCG-compliant firmware The BIOS or UEFI firmware establishes a chain of trust for the pre-operating system startup, and it must include support for TCG-specified Static Root of Trust Measurement. If a computer doesn't have a TPM, saving a startup key on a removable drive, such as a USB flash drive, becomes mandatory when enabling BitLockerĪ device with a TPM must also have a Trusted Computing Group (TCG)-compliant BIOS or UEFI firmware. System requirementsīitLocker has the following hardware requirements:įor BitLocker to use the system integrity check provided by a TPM, the computer must have TPM 1.2 or later versions. BitLocker also helps render data inaccessible when BitLocker-protected devices are decommissioned or recycled. BitLocker helps mitigate unauthorized data access by enhancing file and system protections. Practical applicationsĭata on a lost or stolen device is vulnerable to unauthorized access, either by running a software-attack tool against it or by transferring the computer's hard drive to a different computer. ![]() ![]() ![]() These additional security measures provide multifactor authentication and assurance that the computer won't start or resume from hibernation until the correct PIN or startup key is presented. In addition to the TPM, BitLocker offers the option to lock the normal startup process until the user supplies a personal identification number (PIN) or inserts a removable device (such as a USB flash drive) that contains a startup key. Both options don't provide the pre-startup system integrity verification offered by BitLocker with a TPM. An operating system volume password can be used to protect the operating system volume on a computer without TPM. However, this implementation requires the user to insert a USB startup key to start the device or resume from hibernation. On devices that don't have a TPM, BitLocker can still be used to encrypt the Windows operating system drive. A TPM is a hardware component installed in many devices and it works with BitLocker to help protect user data and to ensure that a computer hasn't been tampered with while the system is offline. Bitlocker is a Windows disk encryption feature, designed to protect data by providing encryption for entire volumes.īitLocker addresses the threats of data theft or exposure from lost, stolen, or inappropriately decommissioned devices.īitLocker provides maximum protection when used with a Trusted Platform Module (TPM).
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