Freewares and Open source softwares are dominating our life. In each and every computer usages there is a freeware substitute. Just take a look at the browser now you are using, I bet it’s a freeware (hay, don’t tell me almost all browsers are free!)
Office
Openoffice 2.2

One of the most compressive opensource software out there. This suite contains Openoffice writer, Openoffice Impress, Openoffice draw, Openoffice base, Openoffice calc, Openoffice math.
Foxit PDF reader

Small in size but big in features. it is less than 1MB .But powerful enough to beat adobe reader.
Internet
Firefox
The most popular opensource browser.far more better than IE.it has a wide array of features.the support of extension make it twice.
Extension page- https://addons.mozilla.org/en-US/firefox/browse/type:1

Thunderbird

An email client from the maker of firefox.it also has extension support.
Extension page-https://addons.mozilla.org/en-US/thunderbird/browse/type:1
IMs that I love
Google talk

An essential integration to your gmail account.
Yahoo messenger

Yahoo! Messenger is a fully featured online communication tool.i can’t call it only an IM
Windows Live Messenger

With Windows Live Messenger you can chat online via text, voice or even video conversation – in real time – with your friends, family or colleagues.
pidgin( formerly called Gaim)

It is a multi-protocol instant messaging (IM) client for Linux, BSD, MacOS X, and Windows. It is compatible with AIM and ICQ (Oscar protocol), MSN Messenger, Yahoo!, IRC, Jabber, Gadu-Gadu, SILC, Novell GroupWise Messenger, Lotus Sametime, and Zephyr networks.
Skype

A software that lets you make free calls anywhere in the world for free.
Free Download Manager

full-featured download accelerator and manager.You can pause,resume etc your downloads.
µterrent

µterror is the Best Free BitTorrent Client for your pc.it’s tiny but with features
eMule

eMule is one of the biggest and most reliable peer-to-peer file sharing clients around the world.hay,it’s also opensource.
Google Earth

Google Earth combines the power of Google Search with satellite imagery, maps, terrain and 3D buildings to put the world’s geographic information at your fingertips.
Multimedia
Winamp

The most popular media player from nullsoft.it’s a must have
VLC player

It playes almost all video/audio formats
K-Lite Mega Codec Pack

It is a collection of all codecs and related tools.no more worrys of codec problems
Mediamonkey

A tool to organize your big music collection
Gimp

The Biggest Competitor for photoshop from the opensource community
Irfanview

A good tool for basic image fixes,it support wide number of image formats.
Picasa

The most reliable photo organizer I had ever seen.thanks to google.
System
Avast home 4.7

The most efficient anti-virus freeware for you(for me!)
Spybot search and destroy

Spybot – Search & Destroy can detect and remove adware files and modules from your computer.For more Protection you can use Ad-aware as an addition .
Kerio Personal Firewall

It is my top recommendation for firewall.it manages protect connected PCs from Internet threats.
Autopatcher

AutoPatcher was an alternative to Microsoft’s Windows Update developed by Antonis Kaladis and Jason Kelley, and a comprehensive collection of up-to-date security patches, addons and registry tweaks collated into a single package designed to update a Windows XP Service Pack 2, Windows 2000 SP4, Windows Server 2003 SP1 or Windows Vista system.You can update system without the need to use Windows Update or connect to a network each time
TrueCrypt

“How can we expect another to keep our secret if we have been unable to keep it ourselves?” – Mark Twain
An encryption tool to lock your secrets
Copernic Desktop Search

Best Desktop search that I recommend
Ccleaner

It is a system optimization tool. It removes unused files from your system and allowing Windows to run faster and freeing up valuable hard disk space.
CDburner pro

It burns all formats!,ya I mean it.good substitute for that boring nero
7-zip

Open source Windows utility for manipulating archives. Formats 7z, ZIP, GZIP, BZIP2 and TAR are supported fully, other formats can be unpacked.
Wordweb

A great dictionary that sites on your system tray and comes for help when you press ctrl+alt+w.
a must have for bloggers.
Tinyspell

“An error doesn’t become a mistake until you refuse to correct it.”- Orlando A. Battista
It warns you make an spelling error and help you to don’t make it a mistake.
Tweak UI

This is a PowerToy which gives you access to system settings that are not exposed in the Windows XP default user interface, including mouse settings, Explorer settings, taskbar settings, and more.
Syncback

SyncBack is our multi-award winning freeware program that helps you easily backup and synchronise your files.
That’s it,all 33 essential freewares for a complete PC.
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