Optimizations
TweakPrefetch
Modify your preload setting in Windows
Tweak RAM
Optimize application memory use
TweakVista
Optimization for Vista from the creators of WindowBlinds
Ultimate Windows Tweaker
Customize Windows Vista to suit your needs
Ultimate Windows Tweaker 8
Optimize and personalize Windows 8 with ease
Ultra Defrag Portable
The defragmenter you can take with you anywhere
Uniblue Powersuite
Keep your PC fully optimized
Vispa
Modify hidden opitions in Windows Vista
Vista Battery Saver
Save up to 70% of energy by disabling Aero
Vista Manager
The new Operating System should be optimized too
WinContig
Defragment files individually
Windows 7 Little Tweaker
Enable extra settings in Windows 7
Winner Tweak
Retouch and optimize tons of Windows functions
WinTools
Good tool pack to power up your system
WinZip System Utilities Suite
Analyze your PC in search of system updates
Wipe
Eliminate Windows garbage and speed up your system