Installation

1. Clean Installation - Replacing the existing operating system
2. Upgrade - Upgrade your existing operating system to windows 7
3. Migration - Migrate your files and settings from old operating system to Windows 7

Tools:

Considering upgrade .. then download Windows Upgrade Advisor for guidance

WET - Windows Easy Transfer or
USMT 4.0 - User State Migration Tool 4.0 can be for migration

When performing an upgrade between two versions of Windows 7 consider using Windows Anytime Upgrade.

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