The evil known as spyware usually infects a PC by
luring an unsuspecting user to a malicious website that either uses a
script to infect an unprotected browser, or uses a pop-up window to
dupe the user into clicking a button that installs the malware (a
so-called drive-by download).
However, spyware crackers also ship out their wares as email
attachments. The Windows Live Mail antivirus settings should thwart
this kind of thing, but for an extra line of defense you can also
configure Windows Defender to scan email messages. Here’s how to set
Select Start, type defend, and then press Enter to open Windows Defender.
Click Options. The Options dialog box appears.
Activate the Scan E-mail check box.