PC Software

Antivirus: the dont_be_a_retard method ( downloading cracks, cheats etc. ) and otherwise microsofts security essentials would do fine as a free solution
Temp files: CCleaner
Defrag: Build in defrag utitlity, third party apps do not know how to optimize the file system properly.

using

Tune Up utilities 2012 (improves my fps alot because of the turbomode!)
Malwarebytes Anti-Malware
CCleaner
RAMrush (whenever ram seems fucked up i just click one button and it feels like the computer restarded - eventho a restart is still the better solution :P )

Gamebooster

or CCleancer

microsoft security essentials

CleanUp! better than CCleaner

microsoft security essentials

spywareblaster ( preventive blacklist )
CCleaner
Symantec Endpoint Protection

I don't need anything more. And defragmentation don't do it on SSD.


Optimizing registry mostly doesn't have much effect, the best way to go is to make a image or backup from a standard installation and put it back every 3 months. Or just reinstall.

Avira Free
http://www.avira.com/en/avira-free-antivirus

Not using antivirus since that piece of shit software is blocking everything I wanna use:D
Just be smart and you wont get virused, scan with https://www.virustotal.com.

Antivirus: Download the real ESET Smart Security trial version. Use http://skynod.blogspot.com.au/ or any other frequent updated website to get your Username and Password. If these were to be black listed
just search the username ex. "EAV-58069177" on Google and you will find many others! This is legit for you and you don't have to spend anything for something that is free when using this method :D.

Temp files: CCleaner probably the most satisfying program I've used.

Defrag: If you are using Windows 7 I would recommend the one which came with it.

e. This is light weight for your CPU and RAM. So stick with this if you want to play safe while gaming.

Malwarebytes Anti-Malware + Microsoft security essentials ftw

Avira with a patch installed to disbale the annoying popup, CCleaner, and Spybot3

panda for antivirus
ccleaner for cleaning
win 7 normal defrag

only MSE