They are many computer issues out there, in this article we will cover the main issues and how you can try to fix them.

Your computer doesn't switch on, this is commonly coursed by the plug or power leads not being plugged in properly. Plug them all in and see if it works, if not then the power supply unit maybe damaged or broken, see if installing another one fixes the issue.

Your computer is making strange noises, this normally means something inside your computer is going to fail and die, but some times this could just be a wire resting on one of your fans, take the side of the computer case and check any loose wires.

Your computer is running slow, there many reasons that could be to blame for this. The main reason is viruses and spyware, these two can create a lot of issues for any computer and will cause your computer to run slower then before. Other reasons can be failing component, this is not normally the case though, and you can try to install some more memory and also defragging your hard drive to see if there is any increase in speed.

Your monitor screen is fuzzy, make sure the connection to the video card to the monitor is connected correctly if the issue is still present then make sure you don't have any speakers or anything that is magnetised as this can damage the monitor.

There is a buzzing sound coming from your speakers, again like the monitor make sure the connections are fitted correctly if the buzzing continues then there maybe a issue with the grounding on the mother board, try connecting a ground point on the motherboard to the case and see if the buzzing stops, if not the speakers could be damaged.

You're running windows XP and your USB mouse and keyboard aren't working, this is because Windows XP is quite old now and you will have to install the drivers for most devices that use USB connect, this isn't the case with the newer operating systems. If after you've install the drivers and the mouse and/or keyboard still aren't working make sure the USB controller drivers for the motherboard are installed, and see if you can test the mouse or keyboard on another computer to ensure they are working.

You can't connect to the internet, they are many reasons this could be because the modem your connection to isn't connected correctly but if your connected wirelessly to a router then make sure your connection details are correct like the right password for wireless key. Also with most modern routers you can see if the router it's self is connected to the internet via the connections settings option.

Your hard drive is making a ticking noise, this is normally the sign that it's ready to fail or die, so backup all the data from it to be safe that all your information doesn't die with it. Some older hard drives sound like this but the new ones of today don't make that much noise at all.

Your computer keeps restarting it's self or crashing, they are many reasons for this but the most common one is over heating. If your computer or laptop is in a closed space or has a lot of components inside it they is a high chance that it will over heat, they are many ways to avoid over heating, the main one is to install extra fans inside your computer case, and the main way for a laptop is to place the laptop on a flat surface or get a laptop base that has fans in it to go underneath.

Author's Bio: 

Advice provided by Nick Hatton of L1 Computers providing Liverpool PC repair and Liverpool laptop repair with a service you are sure to be pleased with.