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System Security... what exactly is it?
I may sound dumb around smart computer technicians on this forum, but I ask what system security exactly is? I've been reading about firewalls, anti-virus, Mal-ware removers, Virus scanner, etc, but I didn't get the chance to learn how important they are to my computer. Currently on my computer (Dell XPS M1530 Windows 7 Ultimate x64) I have NOD32 for anti-virus, and other programs like search & destroy spybot, Ccleaner, Malwarebytes, Defraggler to keep my computer clean. What exactly do these programs do? What else do I need to keep my computer clean? Are these programs good? If not, what programs do you recommend? Sorry I don't really understand much about computers