My 3 year old lap-top was acting hinky. I was wonderring if it were the Norton I was getting free through Comcast. Then I noticed the touch pad was very warm and the cooling exhause port was blowing very hot but low volume.
I opened the back and pulled out the fan. There was a wad of dust blocking the out flow that was so thick I thought it was a felt filter, at first. After I removed the blockage I used canned air to blow the fan blades clean and blew around the guts in case there was more dust in there. Works fine now!
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