[tomek@vz]

BitLocker is a fairly important security feature in Windows that you can use to encrypt your PC's hard drives. Although it was optional and primarily meant for professional SKUs of Windows initially, Microsoft make BitLocker encryption the default configuration for clean installation following Windows 11, version 24H2. While there are ways to turn it off, you may not want to after checking out Microsoft's latest announcement.
The Redmond tech giant says that it has always tried to offer the highest level of security with minimal impact to device performance, which is why BitLocker's performance overhead has always been below 10%. However, with NVMe technology getting even better, I/O operations are faster, and consequently, BitLocker struggles to keep up without taking a bigger chunk of CPU cycles. This means that there is a significant performance impact due to the bottleneck that customers notice and obviously don't appreciate.

> A key component in Windows 11 is getting a huge performance boost soon