[tomek@vz]

Originally introduced with Windows Vista in 2006, BitLocker is Microsoft's own solution for managing fully encrypted volumes and storage units. The technology is also notorious for having some reliability, performance, and security issues, but Redmond is now working to fix all these problems at once - provided you are willing to buy some new PC hardware.
Microsoft will soon start "accelerating" input/output (I/O) operations for BitLocker-encrypted volumes on PC systems with compatible hardware components. The company initially introduced the change at the Ignite conference last month, and has now provided some important details about how hardware-accelerated encryption will actually work.

> Microsoft wants to fix BitLocker's slowdown with hardware acceleration