2. Update the Operating System to Patch Security Flaws
Visit Microsoft Update for critical updates to the operating system.
3. Turn on Your Computer's Firewall
Windows has a built-in firewall you can activate to protect your computer.
Spybot - Search & Destroy is a free tool that detects and removes spyware. Spyware silently tracks your surfing behavior to create a marketing profile for you that is transmitted without your knowledge to the compilers and sold to advertising companies.
If you are unable to clean the computer and rejoin the network, please contact the IT Services Help Desk at (414) 288-7799.