Ms Windows Registry File, Nt/2000 Or Above |best| May 2026

%SystemRoot%\Profiles\<username>\ntuser.dat (NT) %UserProfile%\ntuser.dat (2000 and later) Backup copies (for recovery) exist in:

%SystemRoot%\System32\config\RegBack\ The registry hive file is a binary file divided into 4096-byte (4KB) sectors called bins . Each bin contains one or more cells . 4.1. File Header (Base Block) The first 4096 bytes of every hive file form the base block (header): ms windows registry file, nt/2000 or above