Password reset programs only find passwords from one OS on a dual-boot system

Simple way, see: https://superuser.com/questions/694295/password-reset-disk/694455?noredirect=1#comment883040_694455

Evaluate Microsoft Desktop Optimization Pack 2011 R2 (x86 and x64) - (English)

Diagnostic and Recovery Toolset

DaRT 5.0 - Windows XP; DaRT 6.5 - Vista; DaRT 7.0 - Windows 7;

Locksmith - reset password tool

x86 - only x86 system!

x64 - only x64 system!

DaRT language = System Language

Need system instalation CD!

Microsoft Desktop Optimization Pack 2011 R2

Select Windows 7 x64 Diagnostic and Recovery

Run Windows 7 x64 Diagnostic and Recovery setup

Open Windows 7 x64 Recovery image wizard

Run Windows 7 x64 Recovery image wizard

Select Windows 7 x64 installation CD

Disable Crash Analyzer

If need Crash Analyzer previously install Windows Driver Kit Version, Debugging Tools for Windows and Windows Symbol Packages.

See: Download and Install Debugging Tools for Windows

MDOP – DaRT Crash Analysis Tools

Additional:

Microsoft Visual Studio 2012 Documentation

Download & Package MSDN & TechNet Content

Windows Hardware Certification Kit Downloads

Driver Development Tools

Stop BSOD IRQL_LESS_OR_EQUAL

HKLM\SYSTEM\CurrentControlSet\Control\SessionManager\MemoryManagement
DisablePagingExecutive DWORD 1

Set DaRT ISO name

Create DaRT boot image

Burn DaRT dialog

Boot from DaRT boot image

Network init

select locale

wait search Windows system

select Diagnostic and Recovery Toolset

select Locksmith tool

Locksmith wizard dialog

select user

Reset user password

Finish Locksmith wizard, or reset other users passwords and restart.

Boot Windows 7 x64

Set new password message

Set new password dialog

apply new password

change password information message

The end!