7Tweak

Optimize, clean and modify Windows 7

SlimCleaner

Optimize and clean your computer for free

IObit Uninstaller

Uninstall programs in a very easy manner

JetClean

Optimize your PC's performance

Ashampoo Core Tuner

Optimize the calculus potential of your processor

Startup Booster

Optimise the system's startup

Chrome Cleanup Tool

The official maintenance tool for Google Chrome

AIDA64

Complete tool for system optimization

PC Health Advisor

Improve your computer's performance

Baidu PC Faster

Speed up, clean and assure your computer

Startup Faster!

Manage to make your computer boot as fast as possible

System Speed Booster

Improve the performance of your computer

Total Uninstall

The best way to uninstall our programs

AVG Tuneup

Complete optimization and maintenance suite for PC

CleanUp!

Remove unnecessary files from your computer

FixWin

Fix Vista and Windows 7 errors almost instantly

PhET

Carry out dozens of scientific experiments from your PC

Biogenesis

Observe the evolutionary process of various organisms

Model ChemLab

Simulate a chemistry lab on your PC

QPeriodicTable

Discover all the secrets of the chemical elements

SnapGene Viewer

Observe DNA sequences

Physics 101 SE

Learn physics and calculate anything whenever you want

ChemSketch

Tool to learn chemistry by drawing compound structures

Physion

2D virtual physics laboratory

Serial Cloner

Molecular biology application

FluidSIM

Program to create exciting electro-pneumatic circuits

EniG. Periodic Table of the Elements

Free periodic table of elements with many extra features

ArgusLab

Application to view and develop molecules

Curved Spaces

Represent interconnected universes on your PC

Algodoo

A fun way to learn physics