Microsoft Links:
Microsoft AntiSpyware - Free Spyware Prevention.
Microsoft Update - Updates and Patches for Windows.
Microsoft Knowledge Base - Solutions to Common Problems.

Threat Removal:
CCleaner - General Purpouse System Cleaner (Must Have).
HijackThis - HijackThis, CWShredder and Other Utilities.
Housecall - Free Online Virus Scan.
Symantec - Virus Removal Tools.
Webroot - Spysweeper Personal and Enterprise Spyware Blockers.

Tech Forums:
CastleCops Forums - Spyware and Security Help Forum.
Fix Your Own Printer - Solutions Forum and Repair Kits

Other Links:
CPU-Z - Displays your Motherboard, RAM and Processor Information.
Driverguide - Hardware Drivers.
EventID - Windows Error Database.
Famatech Downloads - Free Network Utilities.
Filext - File Extension Database.
Intel - Intel Motherboard Drivers and BIOS updates.