BLF File Documentation

Overview

Feature Value
File Extension .blf
Full Name Windows Registry Binary Log File
Primary Use Storing registry changes
Developed by Microsoft
Introduced in Windows Vista
Also Available in Windows 7, Windows 8, Windows 10
File Format Type Binary
Primary Application Windows Registry Editor
Encryption Not by default, but can be secured
Typical File Location C:WindowsSystem32configRegBack
Backup Yes, primarily used for registry data backup
Recovery Can be used to restore registry to a previous state
Accessibility Accessible via Windows Recovery Environment
MIME Type application/octet-stream
Associated Tools RegEdit, RegLoadKey, RegSaveKey
Can Contain Binary data representing registry changes
Usage Considerations Used for system backup and restore operations
System Requirement Windows Vista and later versions
Manual Editing Not recommended due to binary format
Interoperability Limited outside Windows environments