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There’s nothing more frustrating than a computer that won’t start. Solving computer startup errors is not easy because there are many interfering factors, both hardware and software. Locating a quick diagnosis will save you a lot of time dealing with this problem.
Diagnosing the Problem
- Unresponsive – Click here if you can’t hear the fan running or the screen light up, or the computer just turned on has been frozen or shut down.
- Beep or POST error message – Click here if the computer does not pass the POST (Power On Self Test) stage. An indication of this condition is a beep or error message, or a series of beeps forming an error code. [1] X Research Source
- Operating System Not Found or Missing BOOTMGR – Click here if your computer completes the boot sequence but cannot load Windows.
Fix Computer Won’t Start
- Plug the computer directly into the wall power to see if the surge protector or power plug is the cause of the problem.
- If you are using a laptop, make sure the charger is connected securely.
- Don’t forget to ground yourself with an antistatic ring or touch a metal object before coming into contact with the internal components.
- Check to see if any cables have lost their protection, exposing exposed wires can also cause short circuits. Replace the cable that has been damaged too much.
Fix POST Error
- The Beep code of each manufacturer is different, so you have to look it up yourself.
- You can refer to how to determine the motherboard manufacturer online.
- If the hard drive is not visible, try replacing the cable inside the computer.
- Don’t forget to ground yourself by wearing an electrostatic ring or by touching metal materials before touching the internal components of the machine.
- You can reinstall the processor, but this is a difficult task and less likely to be the cause of the problem. If removed and reinstalled, there is also the risk of damaging the processor, making the computer unable to work.
- You can use the Memtest86 utility to determine which memory modules are damaged.
- This article will detail how to remove and install the graphics card.
- If the computer works with essential hardware, install the rest of the components one by one, checking to see which software conflicts are in.
- If you can’t go through the POST phase with the essential hardware, you need to replace the hardware, take the device to repair or change it.
Fix Windows Won’t Start
- You can open the Advanced Startup menu by pressing the F8 key when the machine boots up.
- If you can’t get to the Advanced Startup menu, you may have a hardware problem. Refer to the method above to fix the problem.
- If Startup Repair fixes something, you are recommended to run the tool two more times before starting up as usual. Maybe the tool will fix other errors when running 2nd and 3rd times . [4] X Research Source
- Try the most recent timestamp first, then move back to the previous timelines until the error is gone.
- Refer to how to reinstall Windows 7 online.
- Refer to how to reinstall Windows 8 online.
- Click here for detailed instructions on how to reinstall Windows Vista.
Warning
- Since many devices are plugged directly into the wall power, if during the test you smell ozone or burning plastic, or hear a clicking sound, unplug it immediately. Unless you know how to safely repair electrical equipment, leave it to a professional.
- Always turn off the machine and unplug it before touching the computer, installing or removing any part of it.
- Wear an anti-static ring or ground yourself by touching the case before inspecting the internals.
This article is co-authored by a team of editors and trained researchers who confirm the accuracy and completeness of the article.
The wikiHow Content Management team carefully monitors the work of editors to ensure that every article is up to a high standard of quality.
This article has been viewed 4,564 times.
There’s nothing more frustrating than a computer that won’t start. Solving computer startup errors is not easy because there are many interfering factors, both hardware and software. Locating a quick diagnosis will save you a lot of time dealing with this problem.
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