I've been using this laptop for AutoCAD, Sketchup and rendering on Lumion ( architecture softwares) . It was working really decent for past 2 years. Until recently, first the audio started to crack from speakers, then Wifi was disabled completely. Now, It freezes even when there is no application running, just after turning on the laptop. It's getting heated a lot than before. I've never used this laptop apart from work and client presentation. Can anyone help how to fix this?