If your computer won’t start, there could be many causes. The first step to take is to figure out why it won’t start so you can determine what needs to be done to fix the problem. Knowing what steps to take when a computer won’t start can save time and frustration.
If possible, try to restart the computer and see if that helps. If the computer won’t turn on at all, it is likely caused by a power issue. Check to make sure the computer is plugged into a working outlet, and if using a surge protector, check that it is not tripped. If the outlet is good, and the power button isn’t working, then the power supply itself may be defective. If a desktop, the power supply can be replaced or a professional can be hired to do it for you. If a laptop, take it to a professional for repair.
If the computer appears to be powered on but won’t boot up, there could be a myriad of issues causing the problem. Begin by testing the RAM. If more than one RAM stick, try swapping them out to another slot and see if that solves the issue. If nothing changes, then the RAM may need to be replaced.
Another possibility is that the hard drive is corrupted or broken. Check to make sure the hard drive is connected properly and if the hard drive lights are flashing when the computer is turned on. If the drive isn’t detected, it could be defective and will need to be replaced. If it is detected, test it for any errors by running a diagnostic program if available.
If the computer does not have a CD or DVD drive, or the drive is not working, a USB drive can be used to boot from. This will allow access to a version of Windows installation CD or Linux and further troubleshooting can be done from there. Creating a bootable USB drive is easier than it sounds, but if you are unsure of how to do it, a professional can help.
If the computer just won’t go past the BIOS screen you may have encountered a virus or malware infection. To boot to a CD or USB drive, enter the BIOS and change the boot order to boot to the CD or USB drive first. This should allow access to a safe environment where anti-virus programs can be used to scan and clean the hard drive. In some cases, the system may be in need of a fresh install of the operating system which can be done by reinstalling Windows or installing another operating system such as Linux.
If all else fails, the computer could be suffering from a hardware issue. Start by taking the computer apart and inspecting each component for any damage. Pay particular attention to the power supply, RAM, CPU, and hard drive. If any components look damaged, they will need to be replaced. If a laptop, consider taking it to a professional as it may be complicated to work on.
Hopefully this guide has given you a better idea of what to do when your computer won’t start. It is important to have patience and take your time when troubleshooting a computer. If you find you are unable to solve the issue, don’t hesitate to contact a professional who can get to the bottom of the problem.