The most common screw is a 6-32, which you can use a standard #2 Phillips screwdriver to remove. This is the larger of the two most common sizes. The second most common screw is the M3. This is slightly smaller than the 6-32, but can still be removed with a #2 Phillips screwdriver. If you want to clean the inside of your case, you’ll likely need some compressed air and a small vacuum. An electrostatic wriststrap can be helpful for grounding yourself while working inside the computer, but you can ground yourself without one.

Avoid laying your case on the carpet when working on the inside.

Lots of enthusiast cases and some cases from major manufacturers will use different case panel mechanisms. Some use thumbscrews that you can remove by hand, while others have a simple latch and no screws at all. If you’re having difficulty figuring out how to remove or open the side panel on your case, look up your computer or case model online.

Click here for more details on properly grounding yourself.

Click here for detailed instructions on cleaning your computer.

Click here for detailed instructions on installing or replacing a motherboard.

Click here for detailed instructions on installing a processor. Click here for detailed instructions on applying thermal paste and installing a heatsink.

Click here for detailed instructions on installing new RAM.

Click here for detailed instructions on installing a new graphics card. Click here for detailed instructions on installing PCI expansion cards.

Click here for detailed instructions on installing a new power supply.

Click here for detailed instructions on installing a new hard drive.

Click here for detailed instructions on installing a DVD drive.

Click here for detailed instructions on installing a new computer fan.

If you want to clean the inside of your laptop, you’ll want a can of compressed air.

If you want to clean the inside of your laptop, you’ll want a can of compressed air.

Click here for detailed instructions on installing new laptop RAM. Click here for detailed instructions on installing a new laptop hard drive.