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i think i have got virus
Hi guys,it is the 4-5th time i have got virus in windows 7.i think windows 7 catch virus more frequently than windows 8,because windows 8 have windows defender which is good than windows 7's windows defender.i didn't installed any antivirus because i thought windows defender works as good as in windows 8 & tell me if i have any virus in my pc,e.g when i connect any usb or media device to my pc.
but i was wrong my friend gave me some videos in his pen drive & i just copy pasted them in my hard drive.i thought windows defender will tell me if it have any viruses or any problem.
just after that my laptop fan running very fast & when i open task manager my cpu usage goes to 90% but after some seconds it goes to normal 5-6%.
i already ran malwarebytes anti-malware latest version full scan & also updated it.but it didn't caught anything.
i also ran windows defender full scan,but no use.still fan running fast & as of this my laptop battery also draining fast.it only lasts for 1 & a half hour.before it lasts for 3-3.5 hours.
what i should do now,i don't want to re-install windows,plz help