Microsoft Mathematics

Solve mathematical operations with this free tool

MATLAB

Maths software tool for PC

NASA World Wind

Travel the world from your PC's desktop

Seterra

Learn geography with these entertaining activities

Mathematica

Platform for computational development

MathType

Complete mathematical equation and formula editor

Roadnav

Complete GPS navigator for your PC

Marble

Visit the entire planet from a bird's eye view without leaving home

GeoGebra

Software to learn maths at all levels

Octave

Applied calculus software very similar to MATLAB

Derive

Powerful tool for symbolic mathematic calculations

Statgraphics

Carry out statistical analyses on your data

Mathcad

Software for engineering calculations

IBM SPSS Statistics

Poweful software to collect and analyze statistical data

Minitab

One of the best statistical calculation programs

PASW

One of the most powerful statistic solutions on the market

RKill

Put a halt to all the dangerous processes that run in the background

OWASP Mantra

A pack of tools to check a website's security

Preventon

Protection against Internet dangers and malware

Latch Antiransomware

Anti-ransomware tool created by Telefónica's cybersecurity division

BitDefender USB Immunizer

Eliminate malicious auto-executable files from your USB pendrives

RogueKiller

Protect your computer against any malware

RogueRemover

Remove false antivirus alarms from your computer

Ghidra

The NSA's reverse engineering tools

360 NSA Cyber Weapons Defense Tool

Security tool against the NSA's cyberweapons

WOT Internet Explorer

Discover if a website is dangerous with this plug-in

Mandiant Redline

Audit your computer in search of malware

FileASSASSIN

Unblock and eliminate the malicious and unwanted files from your computer.

Winpooch Watchdog

Make sure your programs don't carry out dangerous operations

Norton Power Eraser

The last chance to remove viruses