Toshiba recommends Windows Vista® Business for Business Computing
Toshiba recommends Windows Vista® Home Premium for Personal Computing

*Central Processing Unit ("CPU") Performance Disclaimer:

CPU performance in your computer product may vary from specifications under the following conditions:
  • use of certain external peripheral products
  • use of battery power instead of AC power
  • use of certain multimedia games or videos with special effects
  • use of standard telephone lines or low speed network connections
  • use of complex modeling software, such as high end computer aided design applications
  • use of computer in areas with low air pressure (high altitude > 1,000 meters or > 3,280 feet above sea level)
  • use of computer at temperatures outside the range of 5°C to 35°C (41°F to 95°F) or > 25°C (77°F) at high altitude (all temperature references are approximate).

CPU performance may also vary from specifications due to design configuration.

Under some conditions, your computer product may automatically shut-down. This is a normal protective feature designed to reduce the risk of lost data or damage to the product when used outside recommended conditions. To avoid risk of lost data, always make back-up copies of data by periodically storing it on an external storage medium. For optimum performance, use your computer product only under recommended conditions. Read additional restrictions in bundled documents. Contact Toshiba Technical Service and Support for more information.