My friend's laptop has heavily infected with viruses. Here are the basic specs of her laptop: ASUS TP300L Intel i3 1.90GHz 4GB RAM 500GB HDD OS Windows 8 The main problem is with the above specs, her laptop lags heavily even though she's opening Microsoft Word or browsing with Google Chrome. Second thing that I've noticed is there's a lot of ASUS smart gesture program (like 10+ background processes) running which eats up the RAM and disk usage. Third one is her browser was hijacked with various PUPs and her default search engine has changed to another one instead of google. Last one is her laptop always lose WiFi connection with unknown reasons. Required logs will be posted later because the laptop took ages to scan and there's an error which is 'FRST failed to write in directory C:\FRST\Drivers'