It's quite useful to learn how to troubleshoot basic computer problems by yourself. If your PC fails to response or turn on, you can do some ways to let it power up. It's not entirely difficult but you have to be careful in performing the repair. Here are some ways to fix your computer problem.
1) First, check if the power source provides enough power to your PC. You can test it by pulling out the power cord of the computer and plugging in another device or gadget like a lamp. If the device functions properly, it means that the power source is working fine. The next thing to do is to make sure that the power cord is plugged to the computer and power outlet securely. Check if the power cord functions properly by testing a substitute power cord from another PC, if you have other computers at home. If your computer still does not turn on, then the problem is not related to a faulty power cord.
2) If your PC fails to respond during the start up process but it boots up, try restarting it and press the F8 key until the Windows Advanced Options menu appears. Click Last Knows Good Configuration. This should restart the system and fix the problem. However, if it does not work, the problem could be related to a defective hard drive or corrupted registry. In this case, you may need professional help so you'll have to take your PC to a computer specialist.
3) Check if there is a CD/DVD or floppy disk left inside the computer. Be sure to remove these items; then, restart your PC. If you have connected a new hardware recently, try removing this and restart your computer. There might be incompatibility issues between the external devices and your PC. The device might be faulty that's why it causes problems to your computer. See if this process solves the problem.
4) Check if the monitor is faulty. There are cases when the computer boots up but the screen shows no display at all. The cables to the monitor should be attached firmly to the back of your PC. Test the monitor by using a substitute monitor. If it works, then you may have to replace your monitor. Refrain from opening it since it can be dangerous. However, if it still does not work, you may have to troubleshoot the motherboard or graphics card.
If you think that you can't perform any of these troubleshooting techniques, it would be better to seek help from a professional computer technician to ensure that your PC is fixed correctly.
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