Antiviruses
Avast Free Antivirus
http://www.avast.com
Microsoft Security Essentials
http://windows.microsoft.com/en-us/windows/security-essentials-download
Cleaners
Cleanup
http://www.stevengould.org/index.php?Itemid=223&id=29&option=com_content&task=view
CCleaner
http://www.piriform.com/ccleaner
Anti-Malwares
Spybot Search & Destroy
http://www.safer-networking.org/dl/
Malwarebytes
http://www.malwarebytes.org
SuperAntiSpyware
http://www.superantispyware.com
Emsisoft Anti-Malware
http://www.emsisoft.com/en
SpywareBlaster
http://www.javacoolsoftware.com/spywareblaster.html
Ad-Aware
http://www.lavasoft.com/
Registry and System Cleaners
Advanced System Care
http://www.iobit.com/advancedsystemcareper.html
Auslogics Registry Cleaner
http://www.auslogics.com/en/software/registry-cleaner/
Disk Defragers
Auslogics Disk Defrag
http://www.auslogics.com/en/software/disk-defrag/download/
Smart Defrag 2
http://www.iobit.com/iobitsmartdefrag.html
