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Absolute Beginner's Guide to Wi-Fi® Wireless Networking by Harold Davis

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Using Password Protection

In a mobile computer equipped with Wi-Fi, you can (and should) password-protect operating systems such as Windows XP. This makes it a great deal more difficult (although not always impossible) to boot up your computer without knowing the password.

You can also set a password in the BIOS of most computers. This provides a better level of security than an operating system password, but it is also not absolute.

To set a BIOS password, you must enter the BIOS screens for your computer. This is done during the boot-up process when you've turned the computer on, generally by pressing a key (such as the Delete key) or key combination while the computer is booting up.

For technical information about the security level provided ...

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