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Protect your computer

4 steps to protect your computer

Step 1. Keep your firewall turned on
What is a firewall? What is a firewall?

A firewall helps protect your computer from hackers who might try to delete information, crash your computer, or even steal your passwords or credit card numbers. Make sure your firewall is always turned on.

How to turn on your firewall
How to choose a firewall
Learn more about firewalls for your operating system

Step 2. Keep your operating system up-to-date

What are operating system updates? What are operating system updates?

High priority updates are critical to the security and reliability of your computer. They offer the latest protection against malicious online activities. Microsoft provides new updates, as necessary, on the second Tuesday of the month.

How to update your operating system
Microsoft security updates: Frequently asked questions
Learn about using Microsoft Update
Go to Microsoft Update

Step 3. Use updated antivirus software

What is antivirus software? What is antivirus software?

Viruses and spyware are two kinds of usually malicious software that you need to protect your computer against. You need antivirus technology to help prevent viruses, and you need to keep it regularly updated.

How to get antivirus software
Get regular antivirus scanning with Windows Live OneCare
Get a free safety scan
Learn about viruses
Learn more about virus protection for your operating system

Step 4. Use updated antispyware technology

What is antispyware software? What is antispyware software?

Viruses and spyware are two kinds of usually malicious software that you need to protect your computer against. You need antispyware technology to help prevent spyware, and you need to keep it regularly updated.

Get antispyware technology
Use Windows Defender, free antispyware for Windows XP SP2
Learn about spyware
Learn more about spyware protection for your operating system

Security Updates
high
What are the latest security updates?
Download from Microsoft Update now

Downloads to help protect your computer

Security products and services

Just the basics

Computer security terms: What they mean

Beyond the basics

Firewalls
Updates
Viruses
Spyware
About downloading
More ways to protect your computer


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