If you mean troubleshooting, then it is the process of solving a problem. This is usually done in a technical sense, first evaluating the problem, then 'shooting' through ways to fix it. Whenever you have a computer problem, your best bet is to look up troubleshooting tips online, based on your problem. Many problems are very common and have been fixed before, so if you have a problem, doing a quick search can often help you solve it.