laptop screen turns on and off repeatedly

I have tried removing the hard drive and the RAM, still the same thing. I can't access anything else though. This troubleshooting step is easy enough for anyone to complete, takes no special tools, and could give a lot of very valuable information. Repeat steps 1-2 above but when HP Startup menu opens, please choose F11 for System Recovery options. Question Q405U Asus laptop will turn om but screen will not: Question Acer Laptop won't turn on: Question Dell XPS 9550: Laptop turns off after playing game for a bit, then turns on & off repeatedly on startup until connected to charger. Replace your power supply if it fails any of your tests. - Follow the on-screen instructions to install Windows 7. As soon as you press the power-on button, start hitting the Esc button repeatedly (like tap-tap-tap). Computer shutdown while am still using it. You never used Windows 10 on it and you prefer Windows 8.1 ? ! If you do end up replacing the PSU, keep the computer plugged in for at least five minutes before you try powering it on. Then it turns and again and does the same thing. Remove and unplug any external periferals and accessories. Test after each hardware replacement to determine which device is faulty. I thought that it might be a driver issue, but the Intel Update Utility says that my graphics drivers are up to date, and I just got a clean installation of Windows 10 a few days ago. Ok, there are 2 paths you can go with regards to fixing your computer - official or unofficial one. The unofficial one may be free but may be slightly more difficult for an end user to perform. Computer shutdown while am still using it. Reseat the CPU only if you suspect that it might have come loose or might not have been installed properly. As soon as I push the power button, my laptop turns on for 2 seconds then shuts off. Reinstall each piece of non-essential hardware, one component at a time, testing your computer after each installation. Press once the power-on button to turn on the PC and wait if it will start now.,,, Replace each piece of essential hardware in your computer with a "known good" identical or equivalent spare piece of hardware, one component at a time, to determine which piece of hardware is causing your computer to shut off automatically. Our advice is to revisit Step 11. PC repeatedly turns on and off by itself by MartinAiw Aug 4, 2020 4:00PM PDT. † The opinions expressed above are the personal opinions of the authors, not of HP. This should open a HP Startup Menu. I can access the BIOS thingy by pressing F10 while the screen is on. Try reseating the following and then see if your computer stays on: Unplug and reattach your keyboard and mouse as well. Ok, so this PC runs Windows 8.1 , right ? I then tried turning it back on, and the boot screen with the ROG logo and a loading indicator showed up, but after that, all I got was a black screen, with my monitor's backlight turning on and off repeatedly. Let me know the test results. It runs 8.1 and I have never used 10. It's a 16 GB USB drive which will restore your Windows, drivers, preinstalled apps. The official one may be slightly easier for an end user to perform but costs around 30 USD. If your computer turns on, and stays on, with essential hardware only, proceed to Step 10. Start your PC with essential hardware only. The laptop will continues to turn on and off by itself until I remove the battery and unplug it. The lights on the keyboard come on but nothing else happens. Here is more info >> Reseat everything inside of your computer. I can't find any factor that seems to be making it better or worse. A beep code will give you a very good idea of exactly where to look for the cause of your computer turning off. This process could take anywhere from minutes to hours depending on why the computer turns off so quickly after being turned on. Chances are your computer wouldn't power on at all if this switch is wrong, but an incorrect power supply voltage might also cause your computer to turn off by itself. So the other night i fell asleep, my computer is on (in my room)...i wake up at about 3am and the monitor that has a screen saver going is turning off and on and off and on. Check for causes of electrical shorts inside your computer. If it still fails to load properly, go ahead with the next steps, 2. Please, shutdown the computer using the power button. So when I turn my laptop on, it will stay on for about 2 seconds and then shut off. Begin pressing Esc repeatedly and HP StartUp menu should open. I was on the Internet and using MSN at the time it started. The keyboard lights, fan, etc run on but nothing on the screen. You need to use either 1 empty/blank USB pendrive (4 GB capacity or more), ** How to create bootable ISO on USB device >>, instructions are for Ubuntu, but you need to use the ISO image of Windows 8.1. A POST card is not expensive and is a much more reasonable approach than stocking spare computer parts. Delete all existing partitions and install Windows on Disc 0 Unallocated space, - After successful Windows installation, install drivers taken from HP web site, - Make sure Windows is Activated by going to Start > Control Panel > System, if the key is not extracted from BIOS, you can use ProduKey from Nirsoft >>, x86 Windows >>, x64 Windows >> Choose F9 to open Boot options. This isn't a big concern if you're careful, so don't worry! My computer monitor started acting weird a few days ago. He writes troubleshooting content and is the General Manager of Lifewire. If you don't already own and are unwilling to purchase a POST card, skip to Step 13. If your computer continues to turn off by itself, proceed to Step 11. Provide your feedback/update and let me know if you face difficulties, Didn't find what you were looking for? By installing each device back into your computer and testing after each installation, you'll eventually find the hardware that caused your problem. This troubleshooting step is easy enough for anyone to complete, takes no special tools, and could give a lot of very valuable information. Ask the community. Is there anything else I can do? If you're without a POST card and also without spare parts to swap in and out, you're left not knowing which piece of your essential computer hardware is faulty. Inspect the inside of your computer for problems that cause shorting. What exactly happens when you press F11 ? Not even System Recovery (F11). Hi, I have a Dell XPS 14 Z and it turns on for about 3 seconds and then immediately shuts down. Insert the Windows USB thumdrive prepared previously. Troubleshoot the cause of the beep code, assuming you're lucky enough to hear one.

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