In Step 1 of the 6 step trouble shooting process, you must identify the problem: for example, the computer won't turn on
The next step is to establish a theory of probable cause. Continuing with the previous examples, the problem could be the power plug.
Step three is testing the probable cause theory to determine the cause. Because the power plug provides power to the PC, if it not plugged in correctly the computer will not receive any power, preventing it from turning on.
Next, you should establish a plan of action and test it. For example, you could switch out the power cord.
In the fifth step, you should verify full system functionality. In this example, you might turn on the computer to make sure it works
The final step of the trouble shooting process is to document your findings. Some examples could be writing it down and keeping it handy.