Tip & How-To about Computers & Internet

What to do if your PC wont turn on


PC's will start recognizing hardware from the moment you turn your PC on to when it goes off.
For safety reasons, there may come a time when hardware cannot be recognized thus your PC will refuse to turn on. Since this is debatable, id like to add that it could be a series of faults from faulty power leads to power supplies, a 'dead' motherboard/cpu, or even simply forgetting to turn the mains power on (it happens).
But don't jump to conclusions just yet!

Its a common occurrence when a PC tries to protect its hardware with its safety features that could cause your PC harm or even you. No need to get your wallet out just yet though, try this! Unplug your power cable and all devices such as USB flash drives, wireless devices, external storage devices etc (taking the power lead out on its own may not solve the problem). Keep them out for at least 30 seconds, then plug them back in including the power supply. You may find it was just one of your devices that was causing the problem.


"My name is Nathan, I am a PC parts enthusiast, self taught in basic web design and PC upgrading as a hobby. My tips are from my knowledge and recommendations from 'pros'. My facts may not be absolutely accurate, but its the tip that counts so I hope it will solve your problem. :)"

Posted by on

Computers & Internet Logo

Related Topics:

Related Questions:

2 Answers

Emachines E528 laptop won't start


Try to boot it from safety mode.
and try to restore your system first.
If the restoring is failed, boot safety mode again and back up your files.
If you can't boot your laptop from safety mode, use anti virus program CD like norton.
Mostly, your system is messed up by adwares, spywares, and virus.
If all things fail, you should check your HD.

Jun 18, 2013 | eMachines E525 D260 Motherboard...

2 Answers

Hi, I try to plug my MP3 into one of my USB ports. Doesn't recognize it. 'Removable Disk (H:)' comes up in 'My Computer', but soon disappears.


There is a problem with your USB port
you should try getting them fixed which is a tough job, but you can try plugging your removable media into another USB port like USB ports in backside of the cabinet.
If you don't find any problem with your USB device then you must have been having problem with your Removable Media (Mp3)
If your MP3 Player is under warranty period then you can look for its repair (can be done if its out of warranty too, but it will charge you extra)
Solutions To work around the above issues, one of the below solutions could prove helpful:usb-device-not-recognized.jpg
  • Unsecure or Loose Connection
    Unplug the presently connected USB device (if any). It is quite possible that the connection is not secure and has become loose. Re-plug the USB device tightly and firmly into the USB port. This is one of the most common reasons for an error in detecting a USB device.
  • Scan for Hardware Changes in Device Manager
    Use the Device Manager to scan for new and recently installed hardware. From the Start menu, select the Run option. In the pop up box, type in Devmgmt.msc and then click Ok. From the Action menu, click Scan for hardware changes. This will make Windows scan & recognize any new devices that are installed. Now, close all opened device managers and control panels. Now, follow the above step and see if your computer detects the USB device.
  • USB Power Management
    Disable power management of the USB hub. To disable the power management on the USB hub, follow these steps; Click Start, and then click Run. Type devmgmt.msc in the popup box, and then click Ok. Expand the Universal Serial Bus Controllers' node, and then follow these steps for each USB Root Hub that is listed. 1. Right-click the USB Root Hub and then click Properties.
    2. Click the Power Management tab.
    3. Click to clear the Allow the computer to turn off this device to save power check box, and then click Ok.
    Note: If you perform the following procedure on a laptop computer, you may reduce the battery life.
Sometimes, simply unplugging the USB device and turning off the computer for twenty minutes and then restarting may solve the issue. If none of the above options have solved the problem, check the manufacturer's website for new driver information. It is possible that your drivers need to be updated. There could also be a possibility of hardware failure, which needs to be checked by a hardware expert

Aug 11, 2011 | HP Pavilion Slimline s3407c Desktop,...

1 Answer

when i turn on tv with head phone plug , it's does'nt work, i need to unplug the head phone and plug againt, how can i start tv with head phone on.. thanks


Go into your sound settings in your menu and tell it to audio output to headphones. The reason it does that is because headphones are not set as a default so they only work when plugged in after its on and recognized.

Hope this helps. Please take a moment to rate :]

May 05, 2011 | Samsung LN-T1953H 19 in. LCD HDTV

2 Answers

when i turn my laptop on it say no boot device enter boot device and press any key i havent got one could i reset my hp mini lapotop and start fresh with it?


The "no boot device" error is caused by the system not recognizing your hard drive. The drive has failed in some way and the laptop can no longer read from it. You will need to replace the hard drive before you can reload your laptop.

Mar 24, 2011 | Computers & Internet

1 Answer

The driver is installed but the hardware is not recognized.


First, download the latest driver for your card.
Turn off PC and remove the sound card, then turn on PC and carry out the following;
1. Deinstall the driver and reboot the system.
2. Execute the Windows program regedit and search all items for "Delta".
3. Delete all items and groups of items which point to "M Audio Delta".
4.Turn off PC, re-install card and reboot the system.
5. Install the latest M Audio driver.

Jan 13, 2010 | M-Audio Audiophile 192 Sound Card

Not finding what you are looking for?

517 people viewed this tip

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

kakima

Level 3 Expert

102366 Answers

David Payne
David Payne

Level 3 Expert

14161 Answers

Are you a Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Loading...