Free Utilities useful at speeding up computer

Anti-Spyware

• Windows Defender
• SuperAntiSpyware
• Ad-AwareSE
• Spybot S&D
• Hijackthis
• MalwareBytes
• Microsoft Security Scanner
• MSRT

Anti-Virus

• CLAMWIN
• AVG-free
• Avast
• F-Prot

Registry Cleaners

• Easy Cleaner
• CCleaner
• Eusing Registry Cleaner
• nCleaner

All-In-One Security Suites

• MS Security Essentials

Personal Firewalls

• Comodo
• PC Tools FREE Firewall
• ZONE Alarm

• tdsskiller
• rkill.com

Miscellaneous

• JkDefrag - Free defrag utility
• Glary Utilities
• CCleaner
• Sysinternals
• Autoruns
• MS BootVis
• DropMyRights
• The PC Decrapifier Removes Trialware from new PC
• Windows Repair Repairs many common Windows problems - from MajorGeeks
• Microsoft Baseline Security Analyzer