Microsoft has taken a significant step to make data protection on Windows faster, smoother, and more user-friendly. The company has introduced a new version of BitLocker, its built-in drive encryption tool, that relies on hardware acceleration to improve performance on Windows 11 devices.
For years, BitLocker has helped users keep their files safe by encrypting data stored on laptops and desktops. While effective, the process often depended heavily on the system’s main processor, which could slow down everyday tasks, especially on older machines or during heavy usage. Microsoft’s latest update aims to change that experience.
With hardware-accelerated BitLocker, encryption work is shifted from the CPU to specialised security hardware already present in many modern processors. This means Windows can lock and unlock data much faster, while freeing up the CPU to handle other tasks. For users, the change translates into quicker file access, smoother performance, and less noticeable impact when encryption is running in the background.
Another benefit is improved energy efficiency. Since the CPU is no longer doing most of the encryption work, laptops and tablets may consume less power, helping extend battery life. This is particularly useful for professionals and students who rely on encrypted devices throughout the day.
The new feature is designed to work automatically. If a device has compatible hardware, BitLocker will use the hardware-based encryption by default. Systems that do not meet the requirements will continue to run the existing software-based version, ensuring all users remain protected regardless of their hardware.
Security also gets a boost. Storing and managing encryption keys at the hardware level reduces exposure to certain cyberattacks that target data in system memory. This strengthens Windows’ overall security framework, alongside existing protections such as the Trusted Platform Module.
Microsoft has started rolling out hardware-accelerated BitLocker through Windows 11 Insider builds, with wider availability expected in upcoming releases. The update reflects Microsoft’s broader effort to balance strong security with better performance, making advanced protection feel seamless rather than intrusive.
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