Although computers are perhaps the most used device in many people's lives, they are prone to problems of countless varieties. From physical damage to the computer itself to lost files and slow processing, there is plenty than can go wrong with these vital devices. As computers are so relied upon by many, it can be a challenge to function without them, or while they are working only partially. If you have any problems with your computer, use this guide to decide what to do and how to go about fixing it: System Crash: This is the most frustrating and common problem of all. It involves a sudden and complete shutdown of your computer's operating system. You might first have a bright flash or indicator of a problem, or it may just stop working all of a sudden. When this happens, you will almost certainly have to take your computer in for some kind of repair. Or, call and ask if a local pc repair technician can come to your home to help you with the problem right away. The Mouse or Keys Don't Work: Often a mouse or some of the keys will stop working properly. In most cases, this is something that can be handled alone, without the need for any professional assistance. Dust is often the culprit for this type of problem, so be sure to keep them cleaned. You can also purchase pressurized air in a can to clean the dust from between keys on your keyboard. If the mouse has too much buildup, you might need to purchase a new one eventually. The Monitor Freezes or is Blurry: There are several ways to protect your monitor in daily use. Whenever possible, turn off the main computer monitor when it is not in use, or close your laptop if that is your primary device. Keep in mind that some monitors will need to be replaced sooner than the computer itself. Laptop screens can also be replaced if necessary and will be cheaper than replacing the entire laptop. Before contacting a computer repair technician, search online to try and diagnose your problem. Often, it is something minor that can be fixed without much trouble.