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To be able to use the plug and play feature you computer should have one of the following feature:
An Advanced Configuration and Power Interface (ACPI) BIOS.
A Plug and Play BIOS necessary for the plug and play devices those are available on the system board.
The Plug and Play compliant hardware devices (including buses).
Upgrade is a good choice when you want to retain your present settings, application and user data. Upgrading gives you more features and security over the present operating system. There are many factors you need to consider before you upgrade the operating system.
