How To Fix A Laptop That Won’t Turn On

Is your laptop refusing to switch on? Your laptop may have a broken power supply, battery, motherboard, video card, or RAM if it won’t turn on even though it’s plugged in. Start with the basics when troubleshooting a laptop that won’t start.

Make that the power cord is attached to an outlet and connected to the computer. Make sure the connection between the laptop’s battery and power connector isn’t loose. It could be a problem with an internal component if it still won’t switch on.

A computer or laptop that won’t switch on can be a nightmare, especially if you use it as your primary device. It’s crucial, however, to take a big breath and think about what could be causing the problem. We’ve given advice on how to potentially get it up and running again if it’s one of the six listed below.

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Methods To Fix A Laptop That Won’t Turn On

Method 1: Examine the power source


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One of the most typical issues is this. There are a number of things that can go wrong, ranging from using the incorrect laptop power supply (which delivers the incorrect voltage) to a blown fuse in the plug. As a result, double-check that the adapter is the right one for your laptop and that it is giving the correct voltage and amps.

This should be confirmed by stickers or markings on both the power supply and the laptop. Some third-party chargers only provide power at a rate that is equivalent to what your device requires to function.

When used with one of these chargers, older devices, in particular, can lose a substantial amount of battery life when in sleep mode, and hence may not switch on.

Many laptops – especially those from the same manufacturer – have the same size plug, and if you have several, it’s easy to plug in the wrong power source, which may deliver a different voltage or insufficient current.

If you’re sure it’s the right charger, look for a blown fuse in the plug. Remove the fuse with a screwdriver and replace it with a known-good one. If you have a backup power cable that can connect to your power supply, this is a lot faster way to be sure the problem isn’t the fuse.

Check the cable itself, as power supplies are prone to wear and tear, especially if you carry them around with you. The ends where it connects to the black brick and the socket that attaches to the laptop are both weak places. If the colored wires inside the black outer protection can be seen, it may be time to replace the power supply unit (PSU).

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Power supplies for computers can also be problematic. Because you’re unlikely to have a spare to install and test, check the fuse in the plug first.

There’s also a fuse within the PSU, but you’ll have to remove it from your PC (which isn’t easy) and then remove the metal case to see whether that’s the issue. One of the most typical PC power supply problems is that the computer shuts down unexpectedly rather than failing to start at all.

Make sure the power button in your PC case is properly connected and working if the LED is on, indicating that electricity is reaching it. To exclude the power button from the equation, short the appropriate motherboard pins together. Some motherboards even have a power button built-in.

Method 2: Examine the display


Disconnect any external displays, such as projectors and monitors, to ensure that they aren’t interfering with your laptop’s ability to boot into Windows. Make the room dark and check that there isn’t a very faint image on the screen if your computer’s power LED lights up and you can hear the hard drive or fan(s) whirring but there’s no image on the screen.

It’s easy to believe a laptop isn’t starting when the issue is actually the screen. If a faint image appears – perhaps the Windows logon screen – the inverter may have failed, although this only applies to older laptops before LED backlights were introduced.

It’s tough to replace an inverter, and it’s critical that you get the appropriate replacement part. Because inverters aren’t inexpensive, you can’t afford to make a mistake.

It’s a job best left to the specialists, but given how old your laptop is, it’s probably time to upgrade. If your laptop appears to be booting normally but there is no image on the screen, the LCD panel may be broken. It is feasible to replace a laptop screen, but it is complicated and expensive.


There’s not much you can do to fix a broken PC monitor, but it’s easy – or easier – to replace the power and video cables, or even the entire monitor, to check whether that’s the issue.

Method 3: Remove any USB drives or memory cards that are plugged in.

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If the power supply and screen are both working properly, your computer may be stalled before it runs Windows. A USB drive or memory card left plugged into a USB port or card reader is a common issue. An error message such as “Operating system not found” is common, and it might cause undue anxiety.

The BIOS is set to try booting from external storage drives (including cards) before the internal hard disk the majority of the time. It’s also possible that a disc was left in the DVD or Blu-ray drive, so check there as well.

Method 4: Attempt to use a rescue disc

If none of the above options have worked, try booting from a recovery disk or USB drive. If you have a Windows DVD, you can use it, but if not, you can download a rescue disc image and burn it to a CD or DVD, or extract it to a USB flash drive (using another computer, obviously).

You can then boot from this and use Windows to try to fix the problem. If the problem is caused by a virus, utilize an anti-virus provider’s rescue disc, which will include scanning tools that can locate and remove the malware.


Method 5. Boot into Safe Mode

Start your PC in safe mode in Windows

You might be able to enter into safe mode even if you can’t boot into Windows. When your laptop starts up, press F8 to bring up a menu with the option to boot into Safe Mode. That won’t work in Windows 10, because you have to be in Windows to access safe mode.

You’ll need to boot from a rescue disc or drive in that instance, as explained above. You might be able to undo any changes that caused your laptop or PC to stop booting if you can enter safe mode.

If the account is corrupt, you could try uninstalling any new apps you recently installed, deleting a driver that was recently updated, or creating a new user account.

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Method 6: Inspect the hardware for any problems or incompatibilities.

If you’ve just installed new RAM or other hardware, it’s possible that it’s stopping your computer from booting. Remove it (and, if required, reload the old memory) and try again.

If your motherboard includes an LED readout that displays POST codes, look up the meaning of the code in the handbook or online. Getting a newly built PC to boot can be difficult at times. The best advice is to detach everything except what is absolutely necessary to boot into the BIOS:

  • Motherboard
  • Processor (with heatsink attached)
  • Graphics card (remove any plug-in graphics cards if the motherboard has a graphics output)
  • A single memory stick (remove any others, and leave the single stick in slot 0 or whichever the manual recommends)
  • A power source
  • Monitor

All other hardware is superfluous: the PC may run without a hard drive, optical drive, or any other components.


Common reasons why a newly built PC won’t boot are:

  1. Power leads wrongly attached to the motherboard are common causes of a newly manufactured PC failing to boot. In addition to the large 24-pin ATX connector, if your board includes an extra 12v socket near the CPU, make sure the correct line from the power supply is attached.
  2. Incorrectly installed or seated components. Remove the RAM, graphics card, and CPU and reinstall them, inspecting the CPU and CPU socket for any bent pins.
  3. The power button wires were connected to the incorrect pins on the motherboard.
  4. There are no power wires connected to the graphics card. If your GPU requires it, make sure the PCI-E power leads are properly connected.
  5. The hard disk is plugged into the incorrect SATA port. Ascertain that the primary drive is connected to a SATA port controlled by the motherboard chipset rather than a separate controller.

A component failure is sometimes the cause of a PC’s failure to boot, and there is no obvious cure. Hard disk failure is a typical occurrence.

If you hear a regular clicking or see the drive spinning up and down over and over, it’s probably broken. Occasionally, removing the drive and placing it in the freezer for a couple of hours (in a frozen bag) has shown to be effective.

However, this is usually only a temporary solution, and you should have a backup drive on hand to quickly back up or transfer any items you need from the disk.

It’s time to start again with a new hard drive if you can’t get the drive to work again. In reality, you’d be better off investing in a solid-state drive (SSD). Hopefully, you’ve recently backed-up all of your critical files!

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