This is a list of software to clean/protect your computers.
Abakt(u)
Backup tool for Windows. Free backup software, providing advanced filtering and command line options.Windows 98 / ME / NT / 2K / XP
Ad-Aware
Ad-Aware Personal provides advanced protection from known data-mining, aggressive advertising, Trojans, dialers, malware, browser hijackers, and tracking components. This software is downloadable free of charge.Freeware Non-Commercial
Windows 98 / ME / NT / 2K / XP / Vista
Avast Home
avast! 4 Home Edition is a full-featured antivirus package designed exclusively for home users and non-commercial use. Both of these conditions should be met! (Requires Registration).Windows OS”
AVG Free
GRISOFT is again the recipient of the VB 100% Award, as awarded by Virus Bulletin in February 2008. AVG Anti-Virus proved itself by detecting all In the Wild viruses, while generating no false positives, during both on-demand and on-access scanning in Virus Bulletin’s comparative tests. AVG Anti-Virus Free Edition (AVG’s free product for non-commercial use) was recently awarded PC Pro’s Software of the Year award 2007.Freeware Non-Commercial
Windows OS
ClamAV/ClamWin
ClamWin is a Free Antivirus for Microsoft Windows. Free for commercial-use!Windows Download Page
Linux Download Page
Windows 98 / ME / 2K / XP / 2003 / Vista
Linux
Cobian Backup
Cobian Backup is a multi-threaded program that can be used to schedule and backup your files and directories from their original location to other directories/drives in the same computer or other computer in your network. FTP backup is also supported in both directions (download and upload).Windows NT / 2K / XP / 2003 / Vista
Eraser
Eraser is an advanced security tool, that allows you to completely remove sensitive data from your hard drive by overwriting it several times with carefully selected patterns.Windows DOS / 95 / 98 / ME / NT / 2K / XP / Vista / 7
KeePass
KeePass is a password manager (or safe) which helps you to manage your passwords in a secure way. You can put all your passwords in one database, which is locked with one master key or a key-disk. So you only have to remember one single master password.
Windows 98 / 98SE / ME / NT / 2000 / XP / 2003 /
Vista 32-bit / Vista 64-bit / 7 32-bit / 7 64-bit
Unofficial
PocketPC and Smart Devices
MacOS X (KeePassX)
Linux Link KeePass for Linux
J2ME Website KeePass for J2ME (Symbian, …)
BlackBerry Website KeePass for BlackBerry
PalmOS Link KeePass for PalmOS (Converter)
Malwarebytes’ Anti-Malware
Malwarebytes’ Anti-Malware is considered to be the next step in the detection and removal of malware. In our product we have compiled a number of new technologies that are designed to quickly detect, destroy, and prevent malware. Malwarebytes’ Anti-Malware can detect and remove malware that even the most well known anti-virus and anti-malware applications fail to detect.Windows 2K / XP / Vista 32-bit / Vista 64-bit / 7 64-bit / 7 32-bit
POPFile
POPFile is an automatic mail classification tool. Once properly set up and trained, it will scan all email as it arrives and classify it based on your training. You can give it a simple job, like separating out junk e-mail, or a complicated one-like filing emails in folders by sender.Windows 98 / ME / NT / 2K / XP / Vista
Cross Platform (Any OS With Perl)