How to fix a computer that doesn t turn on?

Is your computer failing to power on? Don’t panic! There are several potential solutions to address this issue and get your computer up and running again. In this article, we will discuss various troubleshooting steps to help you fix a computer that doesn’t turn on.

1. Verify Power Supply

The first step is to ensure that your computer is properly connected to a power source. Check if the power cable is securely plugged into both the computer and the electrical outlet.

2. Test the Power Outlet

Try connecting another electronic device to the power outlet to ensure it is functioning correctly. If the other device doesn’t work either, there might be an issue with the outlet, and you should contact an electrician.

3. Check the Power Button

Sometimes, a faulty power button can prevent your computer from turning on. Inspect the power button for any visible damage, and try pressing it firmly a few times to see if that resolves the issue.

4. Remove External Devices

Disconnect any external devices, such as USB drives, printers, or external hard drives, from your computer. Sometimes, a malfunctioning peripheral can cause a power issue.

5. Remove Battery (If Applicable)

If you’re using a laptop, remove the battery and disconnect the power adapter. Hold down the power button for about 30 seconds, then plug in the power adapter and try turning on the computer again.

6. Inspect the Power Supply Unit

The power supply unit (PSU) connects to the power cord and provides power to the computer. Check if there are any visible signs of damage, such as loose wires or a burning smell. If you suspect a faulty PSU, it may need to be replaced.

7. Reset the CMOS

The CMOS (Complementary Metal-Oxide-Semiconductor) is responsible for storing your computer’s BIOS settings. Resetting the CMOS can sometimes resolve booting issues. Consult your computer’s manual for the appropriate method to reset the CMOS.

8. Check Internal Hardware

If none of the previous steps worked, the issue could lie with internal hardware such as the RAM or motherboard. Consider seeking professional assistance to diagnose and repair the faulty hardware.

9. Clean Dust Accumulation

Excessive dust buildup can cause overheating, leading to power issues. Carefully clean the inside of your computer to remove any dust or debris that may be obstructing proper airflow.

10. Test with Different Power Cable

Try using a different power cable to rule out the possibility of a damaged or faulty cable. If your computer turns on with a different cable, replace the faulty one.

11. Seek Professional Help

If all else fails, it’s advisable to contact a professional computer technician or bring your computer to a repair shop. They have the expertise to identify and fix complex hardware-related issues.

12. Backup Your Data

In case your computer requires extensive repairs or replacement parts, it’s essential to backup your important data. This ensures that even if your computer cannot be fixed, your files remain safe.

How to fix a computer that doesn’t turn on?
To fix a computer that doesn’t turn on, start by checking the power supply, testing the power outlet, and inspecting the power button. If the issue persists, try removing external devices, resetting the CMOS, and cleaning dust accumulation. Seek professional help if necessary.


1. My computer started randomly turning off, and now it won’t turn on. What should I do?

If your computer abruptly powers off and now doesn’t turn on at all, it might be an overheating issue or a faulty power supply. Try cleaning the inside of your computer and check the PSU for any visible signs of damage.

2. Why did my computer suddenly stop powering on?

There are various reasons why a computer may suddenly stop powering on, including power supply failures, hardware issues, overheating, or software problems. Following the troubleshooting steps mentioned above should help you identify and resolve the issue.

3. Can a faulty RAM prevent my computer from turning on?

Yes, a faulty RAM module can cause booting issues or prevent your computer from turning on. Try removing and reseating the RAM sticks, or test them in different slots. If the problem persists, it might be necessary to replace the faulty RAM.

4. Is it possible to fix a computer if the motherboard is damaged?

Unfortunately, a damaged motherboard often requires replacing the entire component, which can be quite costly. It’s worth consulting a professional technician to assess the extent of the damage and determine if it is economically feasible to repair.

5. Can a virus cause a computer to stop powering on?

No, a virus alone cannot cause a computer to completely stop powering on. However, malware infections can disrupt your computer’s normal functioning and performance. Running a thorough antivirus scan may help resolve these software-related issues.

6. Why won’t my computer turn on after a power outage?

During a power outage, your computer could experience a power surge when the electricity returns, potentially damaging the power supply or other components. In such cases, you may need to replace the affected parts to get your computer running again.

7. Can a loose cable prevent a computer from turning on?

Yes, a loose or improperly connected cable, such as the power cord or SATA cables, can prevent your computer from turning on. Make sure all cables are securely connected to their respective ports.

8. What if my laptop doesn’t turn on even when connected to the power adapter?

If your laptop doesn’t turn on despite being connected to the power adapter, try removing the battery and disconnecting the power adapter. Hold down the power button for around 30 seconds, then reconnect the power and attempt to turn on the laptop.

9. My computer’s power button doesn’t respond when pressed. What could be wrong?

A non-responsive power button might indicate a faulty switch. You can try cleaning the power button carefully or consult a technician to replace it if needed.

10. Is it possible to fix a computer that beeps but doesn’t power on?

A computer that beeps but doesn’t power on may indicate a hardware problem such as faulty RAM or a graphics card issue. Consider seeking professional help to diagnose and fix the specific hardware concern.

11. What should I do if my computer turns on but doesn’t display anything on the screen?

If your computer powers on, but the screen remains blank, it could be due to a faulty graphics card, loose cables, or monitor issues. Double-check the connections, try using a different monitor, and update your graphics drivers to troubleshoot the problem.

12. Can a dead CMOS battery prevent a computer from turning on?

While a dead CMOS battery can cause time and date errors, it does not usually prevent the computer from turning on. However, if your computer fails to start even after following the aforementioned steps, you can try replacing the CMOS battery as a last resort.

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