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diskpart list volume (identify system reserved partition, usually 100 MB) exit bcdboot C:\Windows /s S: (S: is system reserved) bootrec /fixboot Copy from another Windows 7 SP1 system (same architecture – x86 or x64):

| File | Location | Role | |------|----------|------| | | Root of system partition (e.g., C:\ ) | Boot Manager; reads \Boot\BCD | | BCD | \Boot\BCD (registry hive) | Boot Configuration Database – menu & settings | | winload.exe | \Windows\System32\winload.exe | OS loader; loads kernel, HAL, drivers | | ntoskrnl.exe | \Windows\System32\ntoskrnl.exe | Windows NT kernel | | boot.sdi | \Boot\boot.sdi | System Deployment Image – RAM disk for boot | | winresume.exe | \Windows\System32\winresume.exe | Resume from hibernation | se7en boot file

sigcheck -a C:\bootmgr When Windows 7 fails to boot, use these methods (from Windows 7 DVD or USB): Method 1: Startup Repair Automatic process; repairs BCD, bootmgr, partition boot sector. Method 2: Manual Boot Recovery Boot to recovery command prompt: C:\ ) | Boot Manager

bcdedit /set default safeboot minimal (Safe Mode) bcdedit /set default recoveryenabled Yes bcdedit /set default bootlog Yes If BCD is corrupted, Windows 7 displays: or BCD error 0xc000000f Repair method (from installation DVD): se7en boot file