If you have a CD/DVD of the necessary updates...

1. Print out this page, if possible.
2. Do NOT connect to the network yet!
3. Run the updates on the CD/DVD you made in the order specified on the updates page.
4. Contact CUIT to have your network access restored.
5. Now, you may reconnect to the network safely.
6. Go to http://windowsupdate.microsoft.com and install all remaining critical updates. You may have to reboot your machine multiple times and go back to the Windows Update page before the process is complete. As soon as it tells you that there are no remaining critical updates to install, you are finished.
7. Set Windows Update to download future updates automatically.
8. Install Norton Anti-Virus from the CUIT Security Downloads page.
9. Reinstall programs and all files you backed up.

Send reports of security incidents, attacks, or questions to security@columbia.edu