just a quick link I found for non-geeks to find out if your computer is infected by Conficker.
Conficker is one of the most widspread worms. the symptoms may include

• Account lockout policies being reset automatically.
• Certain Microsoft Windows services such as Automatic Updates, Background Intelligent Transfer Service (BITS), Windows Defender and Error Reporting Services disabled.
• Domain controllers responding slowly to client requests.
• Congestion on local area networks.
• Web sites related to antivirus software or the Windows Update service becoming inaccessible

this link is just a quick check if your system ispossibly infected very easy to ...

Conficker Eye Chart - Baylor Mirror

cheers

Rhoody