Hello friends…

I am facing some problems with my laptop. These days it is not working properly. It is making sound from its fan. Also it is going hang while working. I think it is the time to service. I have never washed it after buying. So I think it is the time to cleaning. By the way it is Sony Vaio laptop and around 2 years old. It has i3 processor with 3 GB Ram. I am using Windows 7 home basic on my laptop.

Do you have any suggestions to fix this problem at home?