1. Turn off your computer if it is on. If you are experiencing the blue screen regularly, there is a good chance that it will not allow you to boot up your computer fully without shutting itself down. If this is the case, your computer is already more than likely off. Remove the power cord from the computer tower. If you are running a laptop, remove the charge cord, and remove the battery.
2. Remove the screws that hold the PC tower cover in place with a screwdriver. The tower cover usually only comes off on one side, so gently remove the side that is capable, and place it away from the tower. Users with laptops need to remove the RAM panel from the underside of the computer. This gives you access to the RAM for replacing.

3. Locate the RAM that is attached to the motherboard of your computer. You will see clasps that hold the RAM into place, and you may see more than one stick of RAM. Remove all of the RAM sticks by pushing the clasps away, unhooking the RAM from the motherboard. Click your new, replacement RAM into place, and cover the tower back up with the cover, or replace the laptop RAM panel.
4. Hook up the power cable or place the battery back in, and power on your computer. You now see that your computer is working without the blue screen appearing. If you have more than one stick of RAM, turn the computer off, and remove the power cords and battery. Insert one old RAM stick, and cover the tower back up, replace the power cord or battery, and turn on your computer. Check to make sure it does not present you with the blue screen. One by one, reinsert the old RAM sticks into your computer, and test your computer for stability. Once you are presented with the blue screen, remove the last old RAM stick that you inserted, and your blue screen problems are gone.