How to Disable Windows 2000 Firewall

By Robert Terakedis

Microsoft Windows 2000 provides a couple of different built-in methods for controlling inbound network traffic. Many of these methods run as a process or executable under the credentials of a user account (a "user mode" process). TCP/IP filtering, commonly referred to as the "Windows 2000 firewall," is built in to the lower-level functions of the operating system (a "kernel mode" process). As a kernel-mode process, TCP/IP filtering works regardless of the user logged into the system. However, you cannot easily determine what traffic is being filtered and you may wish to disable the functionality altogether.

Step 1

Log in to the computer with a user account that is a member of the local "Administrators" group.

Step 2

Left-click on "Start," "Settings" and "Control Panel," and then double-click "Network and Dial-up Connections."

Step 3

Right-click the network interface where you wish to disable the firewall (typically your Local Area Connection), and then left-click "Properties."

Step 4

In the "Components checked are used by this connection" box, left-click "Internet Protocol (TCP/IP)" and then left-click the "Properties" button.

Step 5

In the "Internet Protocol (TCP/IP) Properties" dialogue box, left-click on the "Advanced" button.

Step 6

Left-click the "Options" tab.

Step 7

Left-click on "TCP/IP filtering," and then left-click the "Properties" button.

Step 8

De-select the "Enable TCP/IP Filtering (All adapters)" check box, and then click "OK" on the "TCP/IP Filtering Properties" box.

Step 9

Click "OK" or "Close" on all the Network Properties windows you've just opened. TCP/IP filtering is now disabled.

Tips & Warnings

  • If you wish to keep the firewall enabled, simply configure the TCP/IP ports that should be allowed through the firewall (see Resources).
  • If you disable the Windows 2000 firewall (TCP/IP filtering), your computer will not filter any inbound TCP/IP traffic, leaving you potentially vulnerable to viruses and malicious network traffic.
  • Support for Microsoft Windows 2000 ends on July 13, 2010. After that time, you cannot get support from Microsoft. It is recommended that you update your computer to a newer operating system to maintain supportability.