System Optimization Tools

IObit Smart Defrag
Free
Speed up your PC with easy defragmentation.
Intel Extreme Tuning Utility
Free
A simple Windows based performance tuning software for novice and experienced enthusiasts to overclock, monitor, and stress a system.
Windows Repair Free
Free (For Personal Use)
A tool designed help fix a large majority of known Windows problems.
InControl
Free
Easily control Windows out-of-control updating and upgrading.
Quick CPU Free
Free
Performance Optimization, System Monitoring & Stability Testing.
CPUBalance
Free
Restrain CPU Hogs to Improve PC Responsiveness.
Auslogics SSD Optimizer Free
Free
A dedicated tool to boost your SSD performance.
Microsoft PowerToys
Free (Open Source)
Windows system utilities to maximize productivity.
Nyrna
Free
Suspend games and applications.
ParkControl
Free
Enables easy adjustment and monitoring of Windows core parking and frequency scaling for each power plan
Ashampoo WinOptimizer
Free Trial
A powerful system optimization tool that cleans your disks and keeps your machine running at constant speed.
System Ninja
Free
A fast, powerful and effective system optimization solution for Windows.
Advanced SystemCare Free
Free
A free PC optimizer and cleanup for Windows
OCZ SSD Utility
Free
A complementary management software designed to help you maintain, monitor and tune your OCZ SSD!
Ace Utilities
Free Trial
Optimize Your PC Using Award Winning Collection of Utilities.
WhySoSlow
Free
Reveals why your system is running slow.
Auslogics BoostSpeed Free
Free
Clean, fix and speed up your PC in a few simple clicks.
Eusing Utilities
Free
A system diagnostic utility that will help you diagnose and optimize your computer.
Fan Control
Free
A highly focused fan controlling software for Windows.
Intelligent Standby List Cleaner
Free
Automatically clears the Windows standby memory list to improve system performance and reduce stuttering.