Disclaimer: Kumidia is not responsible for any trouble you will have if you use the following software. We will also not provide any support for the software below.

Computer Maintenance:

1. CCleaner (very easy to use and effectively cleans out your system to provide more space in your computer for speed and performance. It also protects your online privacy.)

2. Windows Defrag: Defraggin speeds up your computer by organizing the files in your computer.

All windows version have it. For XP go to Start> All programs> Accessories> System Tools? Disk Defragmentor.

For Vista...      you can schedule the time you want to degra

For Seven, just type in Disk Defragmenter... you can also set the schdeule and time

Security...

1. Avira Anti-virus (very good but advertisements pop up)
2. AVG (decent and the most used free anti-virus software in the world)
3. Zone Alarm Security (firewall to prevent hackers from looking at your data)

Office Tools
1. Microsoft Office 2003 to 2010 (easy to use but quite expensive)
2. Open Office (Free and highly recommended)

Coding:
1. CoffeCup Html Editor http://www.coffeecup.com/free-editor/
2. Aptana http://www.aptana.org/studio/download
3. Adobe Dreamweaver (expensive but has customer support and in Japanese.)