If you are using the Windows Firewall include with Windows Vista to protect your computer and network, you can enable security logging. The default location for the firewall log is the Windows directory. However, if you do not want to file stored in this location, you can easily change it using the steps listed below.

1. Click Start, All Programs, and Administrative Tools.
2. Select Windows Firewall with Advanced Security.
3. Click Windows Firewall Properties.
4. Click one of the profile tabs, such as Public Profile.
5. Click the Customize button within the Logging area.
6. Enable firewall logging from the dialog box that appears.
7. Click OK.
8. Under Log file options, select the Browse button.
9. Browse to the location where you want the firewall log stored.
10. Type in a file name for the log and click Open.
11. Click OK.