Depending on your hardware and your current edition of Windows Vista, you can use the Upgrade option during Windows 7 installation to upgrade from Windows Vista to a corresponding or higher edition of Windows 7. For more information, see Windows 7 system requirements.
Upgrading is the most convenient way to get Windows 7 on your computer, because it keeps your files, settings, and programs from Windows Vista in place.
If your current edition of Windows Vista can't be upgraded to the edition of Windows 7 that you want to use, you can still install Windows 7 by using the Custom installation option instead. However, the Custom option doesn't preserve your files, programs, or settings.
For a step-by-step tutorial on how to perform a custom installation, see Upgrading from Windows Vista to Windows 7 (custom installation).
The TOSHIBA WINDOWS 7 Support Page will answer TOSHIBA laptop specific questions and can be accessed by CLICKING HERE.
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