Automatic Repair Loop Fix Windows 10 [Tutorial]

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How to Fix a PC Which Won't Boot

Two Methods:

This wikiHow teaches you how to diagnose and repair a Windows computer that won't complete its boot cycle. While hardware issues are usually the reason behind a computer which fails to turn on entirely, your computer's software may also be at fault.


Fixing Hardware Issues

  1. Understand that many hardware issues aren't immediately fixable.If your computer completely fails to start, you'll generally have better luck taking your computer to a repair service than you will if you try to repair it yourself.
    • Luckily, the bulk of hardware problems stem from poor connections or component failures; your hard drive will usually be fine, meaning that your files should be safe.
  2. Back up your computer's hard drive.Before performing any significant repairs, you might want to back up your files. You can do this by removing your computer's hard drive, connecting it to another computer via an IDE-to-USB adapter (or a SATA-to-USB adapter for older hard drives), and using the other computer to back up the hard drive.
  3. Check the power cable.It may seem simple, but double-check that the power cable is plugged in and the outlet is working.
    • Plug the computer directly into the wall to see if your surge protector or power strip is the cause of the problem.
    • If you are using a laptop, make sure that the power adapter is securely connected.
  4. Try a different monitor.If your computer is starting up but you can't see anything, there could be something wrong with your monitor. Double-check the monitor's connection, and try plugging in a different monitor if possible.
  5. Remove your laptop's battery and connect the power adapter.You can run your laptop without a battery inserted as long as you are plugged into a power source. If your laptop turns on when the battery is removed, something is wrong with the battery and you should contact the manufacturer for a replacement.
  6. Check your power supply cables.Ensure that the cables that connect your power supply (the box that your power cable is attached to) to your motherboard are securely connected.
  7. Test your power supply.Old power supplies have a tendency to fail, but testing them is a relatively straightforward process. Power supplies are the most common cause for problems with a computer's boot sequence.
  8. Check for loose screws.If a screw has come loose in your case, it could be causing your motherboard to short out. Gently rock your case back and forth and listen for metal rattling. Either use your fingers or a long pair of tweezers to remove the screw from the case.
  9. Examine the cables.Look for any cables that have lost their protective coating, as exposed wiring may be causing a short as well. You may need to replace any cables that have decayed too much.
  10. Reseat all of your components.Try removing and then reinserting components such as your graphics card, RAM modules, and all of your cable connections. If anything has come loose, there's a chance that it's disrupting the startup sequence.
    • You can try reseating your processor as well, but this is usually a much more difficult task, and likely isn't the cause of the problem. It also increases the chances of damaging the processor, which will render your computer completely inoperable.
  11. Try removing your graphics card.If you have a dedicated graphics card, try removing it and plugging your monitor into your motherboard's display connection. A malfunctioning graphics card can cause your computer to not boot.
  12. Remove all unessential hardware.Try booting your computer up with only the most basic hardware attached. This means disconnecting your graphics card, additional drives, PCI expansion cards, and extra RAM. After you've removed everything, try turning your computer on.
    • If your computer works with only the essential hardware installed, add pieces back one at a time, testing each time to see where the problem lies.
  13. Seek additional help.If you still cannot turn on your computer with just your essential hardware, then you'll need to either swap out the essential hardware with spares, take your computer to a repair shop, or upgrade to a new one.

Fixing Software Issues

  1. Attempt to start your computer.Press the computer'sPower button
    • If your computer won't even start, try instead.
  2. Hold downShiftas your computer starts up.Doing so will prompt the advanced options menu to open.
    • The advanced options menu is a blue screen with white lettering and options. If the menu doesn't open, try restarting while holding downShift.
  3. ClickTroubleshoot.You'll find this option on the "Choose an option" screen.
  4. ClickAdvanced options.It's near the top of the screen.
  5. ClickStart-up Repair.You'll find this on the left side of the screen.
  6. Select your account name.Click the name of your account in the middle of the screen.
  7. Enter your password.Type in the password you use to log into your computer, then clickContinue.
    • If you don't use a password, just clickContinue.
  8. Allow Windows to diagnose your computer.This can take several minutes.
  9. Follow any on-screen instructions.Depending on your computer's issue, you may be prompted to perform actions to fix the problem, though your computer will most likely address the problem on its own.
  10. Reset your computer.If using Start-Up Repair doesn't fix your problem, reinstalling Windows may help. Make sure that you've backed up any files you want to save, then do the following:
    • Open the "Choose an option" menu again by restarting while holding downShift.
    • ClickTroubleshoot
    • ClickReset this PC
    • ClickKeep my files
      • If using this option doesn't work, you can reset your computer again using theRemove everythingoption.
    • Confirm your choice, then follow any on-screen instructions.
  11. Reinstall Windows using installation media.If none of the repair options work, your only remaining option may be to reinstall Windows with the disc or USB drive you used to install it in the first place. This will format your computer and erase everything on the hard drive, so it is only recommended as a last-ditch option:

Community Q&A

  • Question
    What if the startup repair is running for a very long time?
    wikiHow Contributor
    Community Answer
    If the startup repair runs for more than 8 hours with no result, it isn't going to work. If this occurs, I'd suggest wiping the drive and doing a fresh install if you can afford to lose the data.
  • Question
    My computer is not connecting, what can I do?
    wikiHow Contributor
    Community Answer
    If it is not connecting to the charger, then try cleaning out both ends of the connection, but don't use water. If it's not connecting to the internet, make sure that your ethernet cable is connected or that your WiFi router is on.
  • Question
    After running startup repair, the PC could not find the hard drive. Now when I restart it goes on and off immediately. What do I do?
    wikiHow Contributor
    Community Answer
    Open the boot manager menu with f12 on startup, then rearrange the boot sequence so that sata-0 (or your hard drive) is in the first slot.
  • Question
    How do I restart my PC?
    wikiHow Contributor
    Community Answer
    Hold in the power button for a few seconds. When the PC turns off, push the power button again to start it up.
  • Question
    What should I do if it says the operating system is not found?
    wikiHow Contributor
    Community Answer
    Try installing another OS (operating system) from a CD, following the installation process on the CD/DVD.
Unanswered Questions
  • What do I do if my PC won't boot?
  • How do I fix my PC if there is no menu or message on the screen? It is always black.
  • What do I do if I get a message "bootMGR is compressed and display press CTR+ALT+DEL?
  • What causes the beeping sound on my PC?
  • What do I do if my pc won't boot?
Ask a Question
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  • Unless you know how to work with electricity safely, an internal short is best repaired by professionals.
  • Boot issues can be caused by anything from dust to corrupted system files, so diagnosing a specific problem can be a challenge.


  • Wear an anti-static wrist band or ground yourself by touching the case while the system is plugged in.
  • Always turn off and unplug the PC before touching any internal parts in your PC.

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Date: 04.12.2018, 17:40 / Views: 34553