I am currently using my Sony Vaio notebook and a few months after it was gifted to me the fan has been making loud sounds. A relative of mine thought it was a lawn mower it was so noisy! It has only gotten worse. Now it makes a lower toned noise but seems like its breaking..the fan is slowly but surely failing and it continues to overheat the system. A few months ago it has been getting so overheated that it was turning off by itself everytime i opened the internet or any application for that matter! So i began to take it apart and see if i could replace the fan but they make it so that the fan cannot detatch from the system. If that weren't enough to tick someone off wait till you hear this. This type of system made by Sony is considered a big failure in the making. It's been giving me so much trouble. Everytime i start it up and i try to open the internet it freezes the whole desktop. I can't do anything, except turn the thing off. It will eventually quit if i repeat this step but that may take hours. Sure the system is good for the internet but thats when and if it even works. A downside to the laptop when it works is that it doesnt have a great graphics card. So it cannot play pc games very well. The memory is also pretty small for its size. I will be on the internet and it will begin to load slower and slower until it freezes. this is due to lack of memory space. I only keep 3 applications on my laptop (not counting the essentials) so i shouldn't be having this problem. No big files either. So i have to download a pc cleaning software to take care of it for me. It helps but the laptop will surely begin to slow again. So if you haven't gotten the product i do not recommend it whatsoever. Big chance you will regret it. Now sony is a great company and all but this is just one of few of their failure systems. If you have already bought the product i suggest you keep a lot of memory space and download CCleaner. It does not give any viruses and cleans your PC of unwanted stuff you dont need. All in all, please take my word for it. You will regret buying this product. thank you for your time.