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Antispyware software helps protect your computer from spyware and other unwanted software. Windows Vista comes with antispyware software built-in. Your antivirus software package also might include antispyware software or you may have already downloaded Windows Defender, free antispyware software from Microsoft.

To find out if you already have antispyware software or to check your settings, click the link that corresponds to the operating system you use.

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