Share a screen shot of what you are seeing in DU on imgur so folk can comment further.
As to heat you can move your canned air routine to daily for a week, then weekly for a month and then back to monthly. If you ask what is canned air or say "never done that" then it's time to start. These are not maintenance free laptops.
Installing more apps like AVG should make it run slower. Some like Norton or Mackeeper will finish off the machine.
https://discussions.apple.com/docs/DOC-2435 REPEATS THAT IT WILL GO SLOWER WITH SUCH ADDITIONS.
Bob
Hi folks wonder if someone can help. Have a MacBook Pro (2011) running Yosemite. Mac has a 1 TB HDD. Recently it has started to slow down dramatically and getting really hot. In "About this Mac" it's showing there is over 750GB free but Disk Utility saying I only have 18 Mb free???? Has got me completely baffled! Can't seem to find what is eating up all the storage and trying to run any searches on the laptop is taking forever. I'm using my older iMac to send this message add the Macbook is running so slow. have downloaded AVG and the scan has been running for the last two hours! Any help would be greatly appreciated.
Thanks in advance.
Charley

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