Does BitLocker encrypt and decrypt the entire drive all at once when reading and writing data?
No, BitLocker does not encrypt and decrypt the entire drive when reading and writing data. The encrypted sectors in the BitLocker-protected drive are decrypted only as they are requested from system read operations. Blocks that are written to the drive are encrypted before the system writes them to the physical disk. No unencrypted data is ever stored on a BitLocker-protected drive.
Related Questions
- Can the software decrypt a BitLocker or TrueCrypt drive that was not mounted when the memory image was acquired?
- The time it takes to encrypt data using an Automatically Resizeable drive is very slow; what can I do?
- Does BitLocker encrypt and decrypt the entire drive all at once when reading and writing data?
