TIPS TO KEEP PC SAFE AND FAST. Review on General Tips on Computers

Hi I share my experience on home pc. I'm MCA graduate. During my 10th std I bought computer for playing games at home. I don't know how to handle pc. I just play games and store files that's all. later I took maths computer group in my 11th std.I learned something to handle computer. I collect games from my friends usually from their pendrive. I put game Cd's and pendrives on my computer. suddenly sometimes pc struck or performance low. I don't know why it happens.If any small problem occurs in my pc I don't know how to handle and solve it I hire computer mechanic to solve the problem they come and quickly resolve the problem I was wondered we can't understand at least what may be the problem but they fastly diagnose it like that thinks goes on my mind.I asked them they said put proper antivirus on your pc it deletes virus files from pc and when u put new pendrives or Cd's it scan for virus and if virus resides it deletes. I put kaspersky total security antivirus.It is freely available on internet just download it. they provide free trials for one month this software if we want full version license key is available on internet guru.com, fastkyc.com available.