i have noticed my laptop to be slowing down and my memory is down to a mere 4GB when i know i should have much more. i have avg that updates automatically and runs every night and is not showing any infection, also have the malware which is also not detecting any virus. scan with uniblue is showing 977 errors. followed 8-steps and i have not noticed any difference. still running slow and still having low memory. please help. i do use my laptop in online banking but i would not want to reformat unless i really have to. this laptop was previously infected with trojan vundo that eventually was eradicated.