Upcoming Windows 11 Update to Enable BitLocker Encryption by Default
The 24H2 update will improve security but may significantly reduce SSD performance for new installations.
Overview
- BitLocker encryption will be enabled by default in the Windows 11 24H2 update.
- This change will extend to both Home and Pro editions of Windows 11.
- Tests indicate that enabling BitLocker can reduce SSD read and write speeds by up to 45%.
- Users upgrading existing systems will need to manually activate BitLocker if desired.
- Microsoft has not commented on the potential performance impacts in their support documents.