Author: Craig Lloyd / Source: howtogeek.com

If your MacBook is performing hotter than usual, the cooling fans and other areas might be blocked by dust, and that can prevent them from keeping the whole machine cool. Here’s how to clean out your MacBook so you can get back to intensive computer work in no time.
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Opening up your MacBook to expose its internals sounds like a daunting task, but it’s actually pretty easy since we’re only taking off the bottom cover and nothing else. That’s all we need to access the main circuitry and cooling fans, which are just a few screws away.
What You’ll Need

You’ll need a few things before you get started, some of which you may already have. If not, you can easily get them online.
- P5 Pentalobe Screwdriver: Most MacBooks use P5 screws. If you don’t already have one, it’s best to buy a kit that includes a P5 bit.
- Suction Cup: Needed if you have a 2016 MacBook or newer.
- Guitar Picks: Needed if you have a 2016 MacBook or newer.
- Compressed/Canned Air: An easy way to get rid of most of the dust.
- Cotton Swabs: Great for removing or loosening up stubborn particles of dust and/or dirt.
- Organization and Patience: You’ll want to keep track of screws and take your time with something like this.
Step One: Remove the Bottom Cover
This step is pretty much the same for any modern MacBook, except for the newer Touch Bar models (more on that below). Flip over your MacBook so that the bottom is face up. Take your P5 pentalobe screwdriver and…
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