This procedure will help you determine the patched state of your Windows system, detect and remove any viruses and apply updates.

An antivirus software program will help protect your computer against most viruses, worms, Trojan horses, and other malicious code. Many new computers come with antivirus software already installed. However, antivirus software requires a subscription to stay up to date. If you don't have a current subscription for these updates, your computer is likely to be vulnerable to new threats. This video talks about some common antivirus programs, and how you can get started using one today. You can

An Internet firewall can help prevent outsiders from getting to your computer through the Internet. This step-by-step demonstration shows you exactly how to use the Internet firewall that's built into Windows XP. You can pause the video at any time.

Your Windows XP operating system includes the Automatic Updates feature which can automatically download the latest Microsoft security updates while your computer is on and connected to the Internet. To get the most out of Automatic Updates, run a Windows Update scan on your PC first. This step-by-step demonstration shows you exactly how to use Windows Update to bring your Windows software up-to-date. You can pause the video at any time.

Guide on networking windows, XP, 2000, and 9X in a workgroup.

This paper motivates why designers and developers working on distributed systems for Windows NT need to have a reasonable understanding of Windows NT security to create scalable, maintainable systems. After providing a few motivating factors, the paper points out the primary extensibility points in the Win32 security architecture.

In this Redpaper, you can find detailed instructions to plan and implement a VPN connection between Windows 2000 clients and the iSeries server. The VPN connection, as configured in this Redpaper, allows remote clients to access a network behind the iSeries server using an L2TP tunnel protected by IPSec. The scenario covers and explains the VPN enhancements introduced with OS/400 V5R1.

Describes networking in relation to Windows operating systems including topics such as ARP, WINS, DNS, DHCP, name resolution, RAS and more.

This tutorial will explain how to set up a small network for file and printer sharing. It can also be used as a troubleshooting guide if your network is not functioning.

What to do when your computer suddenly refuses to connect to the Internet? Jim Fox shows how to troubleshoot Dial-Up Network Connection settings and get that ISP connection up and running again in no time.