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64-bit version of the Windows Vista Operating System vice versa to 32-bit version

Pepople who would like to replace the pre-installed Microsoft Windows Vista 64-bit version of the operating system with the Windows Vista 32-bit version, Sony offers Microsoft Windows Vista 32-bit Recovery Media specifically designed for your VAIO computer. To order the recovery media, contact the Sony Parts & Accessories Center by calling (800) 488-7669, or on the Web at http://servicesales.sel.sony.com/ecom/accessories/web/welcome.jsp.

NOTES:
There will be a charge for the system recovery media.
To expedite the system recovery media order process, have all specific VAIO computer model information available when contacting the Sony Parts & Accessories Center.

Can 32-bit Programs Be Run On The 64-bit version of the Windows Vista Operating System?

Many programs designed for a computer running a 32-bit version will work on a computer running the 64-bit version of the Windows Vista operating system without any changes. However, if a 32-bit program uses embedded drivers, there may be some cases there might be performance issues, or the drivers might not work in the 64-bit environment at all. When using a computer with the 64-bit version of the Windows Vista operating system it is best to use programs designed specifically for a 64-bit operating system.