After that (if you see it), can you press/hit F11 ? Then it turns and again and does the same thing. It looks like Windows fails to start. If you do end up replacing the PSU, keep the computer plugged in for at least five minutes before you try powering it on. http://www.computersurgeons.com/p-27641-windows-81-recovery-kit-799727-003-for-hp-stream-notebook-mo... http://hp.dezide.com/ts/start.jsp?guide=HPSystemRecovery.net§ion=ccweb&sfs=tdoc&lc=en&language=e... https://www.heidoc.net/php/Windows%20ISO%20Downloader.exe. He writes troubleshooting content and is the General Manager of Lifewire. This pause gives time for the CMOS battery to charge a little. A beep code will give you a very good idea of exactly where to look for the cause of your computer turning off. I have a curious mind so when something goes wrong i get excited at the prospect of discovering and learning new things. Hi, I have a Dell XPS 14 Z and it turns on for about 3 seconds and then immediately shuts down. Replace the power button if it fails your testing or if you suspect it's not working properly. Follow that link for some easy tips anyone can follow to cool down their computer. Let me know if this helps. In these cases, you have little option than to rely on individuals or companies that do have these resources. I presumed it was the screen saver, however it happened again and again until I had to shut down the laptop. I can access the BIOS thingy by pressing F10 while the screen is 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. I disconnected my monitor and connected it to a power outlet completely seperate from my computer. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Computer shutdown while am still using it. Laptop is no longer under warranty. This should open a HP Startup Menu. My computer monitor started acting weird a few days ago. † The opinions expressed above are the personal opinions of the authors, not of HP. This will check major hardware componets for issue (do it just in case) . This is very often the cause of the problem when the computer powers on for a second or two but then powers off completely. If you don't already own and are unwilling to purchase a POST card, skip to Step 13. I have a curious mind so when something goes wrong i get excited at the prospect of discovering and learning new things. If the power button is shorting out or even just sticking to the case, it might be the reason your computer is turning off by itself. Once you purchase and receive it, insert the USB drive (plug it in) and boot from it (F9). Select the USB thumb drive or the DVD as a boot option. Reseat everything inside of your computer. If you decide to choose the official way, here are instructions how to use the recovery media. The screen of my Acer Aspire 7739z laptop has been going on and off randomly. Yes. 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. Press once the power-on button to turn on the PC and wait if it will start now. Reseating will reestablish all of the connections inside your computer which may have wiggled loose over time. Verify that the power supply voltage switch is set correctly. It can read the BIOS key and provide it to you. Thank you for posting here. The laptop will continues to turn on and off by itself until I remove the battery and unplug it. Start your PC with essential hardware only. This video has been updated: https://youtu.be/-a-N_HfIZsoLearn how to test your HP computer hardware using the HP PC Hardware Diagnostics UEFI. If there are no system checks/no quick tests, perform HDD (hard disk drive) and RAM check (memory check). Press the power on-button on your PC and hold it for about 5-10 seconds until your computer powers off completely. If your computer continues to power off by itself with nothing but essential PC hardware installed, a POST card will help identify which piece of remaining hardware is to blame. Insert the Windows USB thumdrive prepared previously. The official one may be slightly easier for an end user to perform but costs around 30 USD. It keeps doing this and I am forced to take the battery out to stop it from repeatedly turning on and off. >> http://hp.dezide.com/ts/start.jsp?guide=HPSystemRecovery.net§ion=ccweb&sfs=tdoc&lc=en&language=e... perform clean installation of Windows 8.1 (unofficial method, may be free of chrage, slightly more difficult to perform for an end user), >> https://www.heidoc.net/php/Windows%20ISO%20Downloader.exe. Please help! Begin pressing Esc repeatedly and HP StartUp menu should open. PC repeatedly turns on and off by itself by MartinAiw Aug 4, 2020 4:00PM PDT. I have tried removing the hard drive and the RAM, still the same thing. The power supply tends to cause more problems than any other piece of hardware and is very often the cause of a computer turning off by itself. When download completes, you will need to write the ISO image and boot from a bootable media. If your computer continues to turn off by itself, proceed to Step 11. If you don't fix the problem that way, you can always return here and continue troubleshooting with the more generic information below. 3. This troubleshooting step is easy enough for anyone to complete, takes no special tools, and could give a lot of very valuable information. So when I turn my laptop on, it will stay on for about 2 seconds and then shut off. 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. Check for causes of electrical shorts inside your computer. Test your power supply. dell computer turns on and off in a loop; Turning on and 3 seconds later turns off. Ok, so this PC runs Windows 8.1 , right ?