Windows Could not Complete The Installation
Windows Could not Complete The Installation

Windows, with its user-friendly interface and vast compatibility, remains a popular choice for many PC users. However, like any software, it’s not immune to issues. One error that has stumped many during the installation process is the “Windows could not complete the installation” message. If you’ve encountered this roadblock, don’t fret.

This error can be particularly frustrating as it can lead to a system reboot loop. If you’re facing this issue, don’t fret. We’ve compiled a comprehensive guide based on real user experiences and expert advice to help you navigate and resolve this error.

Understanding the Error

The “Windows could not complete the installation” error typically arises during the final stages of the Windows installation process. It can be particularly frustrating as it prevents users from accessing their system. The error can be attributed to various factors, including corrupted installation files, hardware inconsistencies, or misconfigured settings.

This error usually occurs when users are trying to install Windows 7/Windows 10 x64 operating system. It can also arise if the fresh Windows installation is interrupted before a user account is created. This error can be persistent, leading to a reboot loop, which can be quite frustrating.

Automatic Repair: A Quick Fix

One of the first solutions you can try is the Windows Automatic Repair:

  1. Initiate Automatic Repair: Power on and off your computer three times. On the third time, your computer will prompt “Preparing Automatic Repair” and boot into the “Advanced Recovery” environment.
  2. Navigate to Troubleshoot: Click “Advanced Options” > “Troubleshoot” > “Reset this PC”.
  3. Keep Your Files: Click “Keep my files” and then “Cancel”. You don’t need to reset your computer.
  4. Reset: Choose your account, enter your password, and click “Reset”.

The Shift + F10 Repair

Another solution revolves around the creation of a user account (also outlined in the ‘Other Solutions’ below):

  1. Access Command Prompt: On the error screen, press Shift + F10.
  2. Navigate to OOBE: Type cd %windir%/system32/oobe/ and press Enter.
  3. Run MSOOBE: Type msoobe and press Enter.
  4. Create User Account: Set up an account and password on the user account creation wizard.
  5. Restart: Finally, restart your computer.

Other Solutions to the Installation Error

  1. Restart the Installation Process
    • Sometimes, the simplest solution is to restart the installation. Remove the installation media, restart your computer, re-insert the media, and initiate the installation again.
  2. Check the Installation Media
    • Potential Causes: Corrupted or incomplete installation files.
    • Solution: Ensure that your installation media (USB/DVD) is not damaged. If using a USB, consider reformatting it and downloading a fresh copy of the Windows installation files.
  3. Adjust BIOS Settings
    • Potential Causes: Misconfigured BIOS settings.
    • Solution: Access your computer’s BIOS and ensure that the hard drive you’re installing Windows on is set as the primary boot device. Also, consider resetting the BIOS to its default settings.
  4. Use Command Prompt
    • Boot your computer from the installation media and, when the error appears, press Shift + F10 to open the Command Prompt. Enter the following commands:
      cd oobe
    • This will initiate the Windows Out of Box Experience and might bypass the error.
  5. Check for Hardware Inconsistencies
  6. Seek Professional Help
    • If you’ve tried the above solutions and the error persists, it might be time to consult with a professional. They can provide a more in-depth diagnosis and ensure a smooth installation.

Advanced Solutions: System Transfer

If you don’t have a system backup, you can either:

  1. Clean Install: Download official Windows 10 ISO files on a working computer, create a bootable media, and perform a clean install.
  2. System Image Transfer: Create a system image on a working computer and transfer it to your computer.

For a seamless system transfer, you can use tools like EaseUS Todo Backup:

  1. Create an Emergency Disk: On a healthy computer, connect a USB or external hard drive and create an emergency disk using EaseUS Todo Backup.
  2. Backup Windows System: Back up the Windows system on the healthy computer.
  3. Boot from Emergency Disk: Connect the emergency disk to the computer facing the error and boot from it.
  4. Transfer System: Use the “System Transfer” option in EaseUS Todo Backup to transfer the system.
  5. Restart: Restart your computer and update all drivers and programs.


While the “Windows could not complete the installation” error can be a hurdle, it’s not insurmountable. With a systematic approach and a bit of patience, you can resolve the issue and enjoy a fresh Windows installation. Remember, technology, while immensely beneficial, can sometimes throw curveballs our way. It’s all about finding the right solutions and moving forward.

Whether you opt for an automatic repair, the Shift + F10 method, or a system transfer, ensure you follow the steps carefully. With patience and the right approach, you’ll have your Windows up and running in no time.


  1. Is it safe to restart the installation process multiple times?
    • Yes, restarting the installation process won’t harm your computer. However, ensure you’ve backed up any essential data.
  2. Can outdated BIOS cause installation issues?
    • Yes, an outdated BIOS can sometimes cause compatibility issues. Consider updating your BIOS if you suspect it’s the culprit.
  3. How do I know if my installation media is corrupted?
  4. Can I install Windows on a different hard drive if I face this error?
    • Yes, if you have multiple hard drives, you can try installing Windows on a different one to see if the error persists.
  5. How long does a typical Windows installation take?
    • A standard Windows installation can take anywhere from 30 minutes to a couple of hours, depending on your system’s specifications and the version of Windows being installed.
  6. Can I use my product key after a system transfer?
  7. What if the Shift + F10 method doesn’t work?
    • If the Shift + F10 method doesn’t yield results, it’s recommended to try the other methods mentioned or seek expert assistance.
  8. Is it safe to transfer the system using third-party tools?
    • Yes, as long as you’re using a trusted and reliable tool like EaseUS Todo Backup, system transfer is safe.
Eric Chan

Hi! I’m Eric and I work on the knowledge base at  You can see some of my writings about technology, cellphone repair, and computer repair here.

When I’m not writing about tech I’m playing with my dog or hanging out with my girlfriend.

Shoot me a message at if you want to see a topic discussed or have a correction on something I’ve written.

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