Help with Windows Problems:

Microsoft support

Windows Updates

MVPS - fixes for lots of windows errors

Outlook Express Backup - Creates a backup copy of email messages, attachments, address book, list of blocked senders, identities, accounts, message rules, and signatures.

Online Antivirus Removal And System Scans:

Symantec (Antivirus) - The Latest Updates

Trendmicro - Online Virus Scan from the makers of the best Antivirus program around

Norton System Scan - Online System Security Check from Symantec

Bitdefender - Finds more viruses than most others

Nod32 - Antivirus removal

BitDefender - Firewall and Antivirus software

SpyBot Search & Destroy - Excellent fee software for spyware/adware removal

SpywareBlaster - Prevents dialer software and spyware been installed

CWShredder - Removes spyware

Parasite Checker - Online to check Internet Explorer for Spyware And Parasites

AdAware - Excellent spware/adware checker (Free for Personal Use)