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I may have to purchase a new pc. If I'm not around for awhile you will know why.
I have had this computer for quite awhile, maybe 10 years now. Could it be dying?
...(Mark - I put two dollar signs in there and everything in between got formatted funny. I think it's your LaTEX addition, any chance it could be tweaked?)
Thanks for the ideas. I've taken it in before when it crashed and wouldn't work and it was about $100. I know a new one costs a lot more. I will check the dust thing.
Clearing out dust is a fiddly job. On a desktop it's a bit of a hassle, on a laptop it's probably not something you can do unless you're confident enough to dismantle the thing. (Dismantling it is easy, putting it back together again afterwards is a little more fiddly!)
I have a desktop. I just dusted the back of it. It may have dust inside, too, I'm guessing?
Yes, the dust on the outside is only a small part of the problem.
Inside the box you'll find a fan attached to a heatsink (which will look like lots of metal fins in a line), which is attached to the processor. If the heatsink is stuffed with dust that could be a good part of your problem. Poking the dust out isn't inherently difficult to do but if you're not confident with the innards of the machine you may find it a little daunting. If you'd like more details I'll write more but don't want to give lots of instructions if you don't feel confident even to take the back off the computer.