Dell Inspiron 14R (N4010, Early 2010) - Manual (Page 256)

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Security and Privacy
Encrypting Files and Folders
Encryption is an additional method you can use to protect your files and
folders. Encrypted files and folders can only be viewed or accessed by users
with proper permissions.
1 Right-click the folder or file you want to encrypt, and then click Properties.
2 On the General tab, click Advanced.
3 Select the Encrypt contents to secure data check box, and then click OK.
Using Antivirus Software
By using an antivirus software program, you can protect your computer from
computer viruses. Computer viruses can infect your computer, damage your
files, make your computer vulnerable to additional attacks, and cause your
computer to spread viruses to other computers. Computer viruses can be sent
through e-mail or through downloaded programs.
For a list of compatible antivirus software programs, visit the Microsoft
Catalog at the Microsoft website (microsoft.com).
Maintaining Security When Using a Public
Wireless Network
Generally, two types of security are used for public wireless network:
FOR MORE INFORMATION: To learn more about firewalls, see "Windows
Firewall: recommended links" in Windows Help and Support: click
Start or → Help and Support. Also, see "Firewalls
" on
page 180 .
FOR MORE INFORMATION: To learn more about encryption, see
"Encryption: recommended links" in Windows Help and Support: click
Start or → Help and Support.