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.
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
Ashampoo WinOptimizer
Free Trial
A powerful system optimization tool that cleans your disks and keeps your machine running at constant speed.
Auslogics Registry Cleaner
Free
Clear invalid entries from your Windows registry and get your PC running smooth again.
OCZ SSD Utility
Free
A complementary management software designed to help you maintain, monitor and tune your OCZ SSD!
ParkControl
Free
Enables easy adjustment and monitoring of Windows core parking and frequency scaling for each power plan
Auslogics BoostSpeed Free
Free
Clean, fix and speed up your PC in a few simple clicks.
Quick CPU Free
Free
Performance Optimization, System Monitoring & Stability Testing.
Ace Utilities
Free Trial
Optimize Your PC Using Award Winning Collection of Utilities.
Auslogics SSD Optimizer Free
Free
A dedicated tool to boost your SSD performance.
DiskFresh
Free (For Personal Use)
Refresh your hard disk signal without changing its data by reading and writing each sector and hence making your disk more reliable for storage.
InControl
Free
Easily control Windows out-of-control updating and upgrading.
MemPlus
Free
Safely free up your RAM, for free!
Microsoft PowerToys
Free (Open Source)
Windows system utilities to maximize productivity.
Tweak-SSD
Free
Optimize your SSD drive.
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.