Noisy...

My laptop is about six years old and it has worked like a dream until now. For some reason it is getting really noisy. My guess is that the fan needs cleaned but I don't know for sure. Something similar happened with our desktop computer a few years ago. The computer got so loud that we could hear it running through the  computer cabinet. My husband took the computer apart and cleaned it and it worked fine until the day we replaced it. I don't know if laptops can be cleaned in a similar fashion or not without ruining them. They are so much more compact that it seems like it would be easy to dislodge an important component. I will have to do some research before I set my husband loose on this particular computer.