How to Fix a Computer that Won't Boot Up (Official Dell Tech Support)


Learn how to fix a computer that won’t boot up. We show you how to troubleshoot and fix no boot issues for both Laptops and Desktops with easy to do steps.
Dell support article: No power, post, boot, video for Desktops…
Dell support article: No post for Notebooks…
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For support questions email us at dellcares@dell.com
TRANSCRIPT
Welcome to Dell Tech Support. Sometimes your system refuses to boot into Windows after starting up. In this video we will go through some basic troubleshooting to determine why your PC is not booting and help to resolve this issue. First we need to verify if you are experiencing what is called a ‘No Boot issue’ and not another type of failure. Check if the computer completes the POST which is the initial power up: it is the Power-On Self-Test. If the computer advances past the Dell logo splash screen, but then hangs when attempting to load the operating system, then it is most likely a No Boot issue. If this is the case, it is best to run a hardware diagnostic. Watch our tutorial on running the ePSA test which you can access at the end of this video (Diagnose Hardware Issues on your Dell Computer ). If all the diagnostic tests pass, reboot your system and take note of any specific error messages. If there are some, contact us and we will help you with a resolution. You can also check to see if the peripherals are causing interference. With your PC off, unplug all external devices, such as USB drives, printers, cameras and phones. For desktop computers, it is okay to keep the monitor, keyboard and mouse connected to the system. You should also remove any external media like DVDs and CDs and memory cards. Restart your PC to see if it is able to boot. If it can you are good, but you should check which peripheral is the culprit. Test each separately by restarting the system with only one connected at a time. Another thing to try is to reset the BIOS back to default values. Restart the computer and repeatedly press the F2 key at the Dell logo until you enter the system setup. Look for an option reset to default settings. Then save and exit. If your system is still unable to boot into Windows, you can reset your PC or restore it to factory settings. Watch these topics for information and access these at the end of this video (How to Perform a System Restore and Creating a Recovery Drive in Win10 ). To go even deeper, check out the Dell article links provided in the description below for advanced troubleshooting techniques. Read the Dell articles on No POST / No Boot topics (for Desktops and for Notebooks ). If you have any questions or need additional help, contact us through our social media support through Facebook or Twitter and a Dell tech expert will be happy to assist you. Thanks for watching. Be sure to check out our other tips and tutorials available on this channel, and please don’t forget to subscribe.

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44 bình luận trong “How to Fix a Computer that Won't Boot Up (Official Dell Tech Support)

  1. my dell tower only says on my monitor safe mode then goes away. I brought it in to shop last month and they did something reset something by taking the side panel off. I am doing that now and cannot remember what they did. It was so easy.. Do you know what that can be?

  2. bonjour bonsoir j'aimerai savoir si c'est possible d'empecher le démarrage du systeme analyse pre boot check performance ,
    car suite a l'installation d'un water cooling il me provoque une erreur avec le ventilo du cpu alors qu'il est bien branché a chaque démarrage de l'ordi .

  3. Hi, I need some help. I pressed the power button to turn on my computer but it didn’t show the del sign and it just turned off. PLEASE HELP ME, I JUST GOT IT AND MY PARENTS ARE GONNA KILL ME IF THEY FIND OUT.

  4. My Dell laptops are having problems that when i pluged ac adoptter in board, then the led light of the adopter stays on, but as soon as the pin is inserted in the laptop, the light in the adopter is cut off and the laptop is not taking charge and not turning on the laptop.
    Please help me sir . Please solve my problem

  5. Hello please I downloaded Bios on my Dell 3500, as installation was taken place, my laptop got freeze and it went off and making noise so I removed my laptop charger and the battery, I put back the battery and the charger, I on my laptop the power button light on but nothing on the screen and it goes off, is my laptop damage? Or something can be done please, help me

  6. i was charging a power bank and the lights off my computer would not turn off with the computer and i realized i cannot turn on the computer either. thanks for telling me to unplug everything but mouse n keyboard haha

  7. i have a dell optiplex 755 purchased around 3 years ago as refurbished. it worked fine until this morning. yesterday i installed the most current windows (optional) update, used the pc for a bit, went to bed when upon waking i went to turn it on and ran into a bizarre issue when attempting to boot it up. Here's my issue (maybe you can help(?)) i power it on, the bottom of the screen show a quick splash screen of the computer's name (on the bottom of screen) then the screen turns black… after waiting 5-10 minutes, I come back to check on it and the screen is suddenly orange with white vertical lines and i cannot get out of it unless I hit the power button. typically when I hit the power button I have to hold it until the green lights go off on the tower, but now I only had to tick the power button and it shuts off automatically (less than a 10th of a second push), so that too was weird… back to my issue… I hit the power button to turn back on, the first hotkey I hit was the F12 key where I performed a complete hardware scan; everything passed with the exception of the the 1st test came back with the error code 2000-0146(?) Did a search and it said this was typical so I continued on with the hardware scan that took roughly an hour to complete, I rebooted the system but still had the issue. All peripherals and external media was unhooked, during these steps (they were the first things I removed, prior to running the scan) the next step I took was to go into the bios (F2) but could not change any of the bios there, only had the option to boot in the sata or from usb/dvd optical drive, I tried both but without a bootable disk or usb drive so that didn't work either. There isn't an exit option in the bios section of the pc (I watched another video on boot issues posted by Dell Support) so that of course, couldn't have helped and resetting to defaults was NOT an option either. I've searched everywhere for solutions to MY issue but cannot find one to this specific issue so I am writing here hoping you can help? I've since unplugged my optiplex 755 and am ready to (essentially) throw it away, but if I can find away to either fix a part or get the pc running (and booting up) again…. that will give me more time to save on buying a different pc. Again, I am unable to get the computer to complete the boot, first it stays on a black screen then turns into an orange screen with white vertical lines, I never get the chance to sign in because the lock screen never appears so this feel like a boot issue and I am uncertain what to do from here. PLEASE HELP! Thanks

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