Problem: Intel Rapid Storage Technology Driver One very important thing is uninitialized state: it means that you cannot clone a drive with data on it and enable BitLocker with hardware encryption afterwards. If the drive is used as a startup drive the following apply additionally:
The drive must be in an uninitialized state.These are the system requirements according to TechNet: AnandTech has some numbers that illustrate these points. That translates into longer battery life and higher performance. Why Use Hardware Encryption?ĭoing encryption in hardware on the disk drive instead of in software by the CPU should be more effective. Hardware encryption in the drive may be buggy.īeginning with Windows 8 BitLocker can offload the encryption from the CPU to the disk drive. Likely reason: the security of software encryption can be controlled by Microsoft. : with the 2019 September update KB4516045 BitLocker uses software instead of hardware encryption by default.