13 Fixes For Windows Could Not Complete the Installation

If you are getting the error saying, Windows could not complete the installation. Then there could be multiple reasons behind it. Like update service shut down, corrupted installation files, an incompatible system and continued. To repair the issue, we have mentioned all the viable fixes in this article to fix – Windows could not complete the installation error.

Fixing The Windows Could Not Complete The Installation Windows 10 Dell Issue:

  1. Using Automatic Repair
  2. Enable Administrator Account
  3. Change Password Requirement
  4. Run Account Creation Wizard
  5. Restore To Different Computer
  6. Check Whether Your Computer Meets The Minimum Requirements
  7. Clearing Certain Attributes Of The Installation Folder
  8. Reinstall The System Home Version Without Activation
  9. Run Windows Update Installer
  10. Modify Registry Subkeys
  11. Exit From The Audit Mode
  12. Rebuild BCD
  13. Run The Installation In Clean Boot Mode

Using Automatic Repair

If you get to see an error saying Windows could not complete the installation. Then to tackle it, the first and foremost thing you could do is to run the Automatic Repair. Automatic Repair will automatically spot and fix the boot issues in your computer.

For running the Automatic Repair, you need to restart your Windows 10 device. As the restart begins, click the boot option button. You can search it for your system model name. Once you get your boot option key, continue tapping the key while the restart process is running. If you do it correctly, then the boot options screen will open up on your screen. Now, do the following steps:

  1. Enter the windows recovery environment.
  2. Locate the Troubleshoot option and hit enter.
Recovery environment  menu
  1. Now select Reset this PC followed by the Keep my files option. And select Cancel.
  2. Choose your Account and enter the password.
  3. Now, click Continue and Finally click on Reset.

It will fix your issue in almost 60-70 % of cases. And the computer restarts the installation to install windows. And will not require any extra configurations. If this does not restore your problem, follow the below approach.

Enable Administrator Account

In case you can try enabling the Administrator Account. It will allow the installation process without admittance issues. 

To achieve this, follow the below-mentioned steps:

  1. Open the Command prompt on the error screen.
  2. Now, enter the MMC command on the command shell and hit enter.
Running MMC command in the Command prompt
  1. Your computer system now will ask you whether to give access to the MMC or not. Click on Yes and proceed.
  2. Console root window will open on your screen. Now click on File and pick Add/Remove Snap-in.
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Opening Add/Remove Snap-in
  1. Locate the Computer Management and open it. 
  2. Now check the Local computer option and click Finish.
Selecting the local computer in Computer management
  1. Next, click OK. And double-click on the Computer Management option on the left.
  2. Go to the System tools and select Local users and groups, and open the Users folder. 
  3. In the Computer management local system tools local users, open the Administrator and make sure the Account is disabled option is unchecked, and click OK.
  4. Now right-click on the Administrator to set the password.

Once done, restart your system and see if the problem is gone.

Change Password Requirement

Many times password becomes an issue in executing plenty of functions in our system. Due to the authorization and access refusal. And it may be the case you are having the same problem with the error Windows could not complete the installation. 

To fix this, we will try changing the password requirement on our system. Follow the below steps:

  1. Open the Command prompt on the error screen.
  2. Now paste secpol.msc in the console and hit enter.
  3. Now on the pop-up window, select Security settings and open Account policy.
  4. Open the Password policy on the right you’ll get to see the Minimum password length. Now, right-click on it and open properties.
  5. Change the length to 0 characters.
Setting minimum password length
  1. Now, opening the password must meet complexity properties and disable the setting if found enabled. And apply all the changes.
Changing password storing settings

Reboot and check if the problem is solved.

Run Account Creation Wizard

If the above fixes didn’t help you, try creating a new generic account and see if this helps. 

For this, you’ll need to run the Account creation wizard to achieve it, follow the mentioned steps:

  1. On the error screen, press Shift F10 to open the Command prompt. And paste CD C:\windows\system32\oobe in the shell, and hit enter.
  2. Now, paste msoobe in the console and hit enter.
Running mscoobe in Command prompt
  1. Now click Yes to proceed. 
  2. Create a generic account and password.

Now, check if the issue is solved.

Restore To Different Computer

Restoring to some other computer system has helped many people solve the Windows could not complete the installation error. For this, you’ll require third-party software to achieve the same. Here we will be using MiniTool ShadowMaker, which is a Windows 10 backup software tool. 

MiniTool ShadowMaker is an excellent tool that provides various backup services. And it can also clone the OS from HDD to SSD. 

Download the MiniTool ShadowMaker here.

To restore on some different computer and install windows on this computer,

follow the mentioned steps:

  1. Connect your hard drive to the computer and launch the MiniTool ShadowMaker recovery environment.
  2. Now go to the Restore and click over Add Backup for adding the system image to backup.
Creating backup in MiniTool software
  1. Confirm restoration by clicking Restore.
  2. It will now ask you to choose the backup version. Choose the version and click Next.
  3. Select the volumes to restore the selected backup files. And make sure to check the MBR and Track 0 for the successful booting and now click Next.
  4. Now it will ask you to choose a target disk. Choose the preferred target disk and click Next. 

Now, wait until the software completes the backup process. Once done, it may happen that you won’t be able to boot your system normally. So to fix this, you will require to do the Universal Restore. 

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Go to Tools and select the Universal Restore, and now click Restore.

Once the restore process gets over, close the MiniTool and set your system to boot from the hard drive. Now see if your system boots successfully.

Check Whether Your Computer Meets The Minimum Requirements

It is essential for fulfilling all the requirements for favorably installing Windows 10 on your system. Check the following parameters for successfully installing Windows 10:

Required RAM:

The expected RAM is 1 GB, 2 GB for 32 bit and 64 bit respectively.

Required Hard disk space:

Disk space required is 16 GB, 20 GB for 32 bit and 64 bit respectively.

CPU requirement:

The Processor must be 1GHz or faster.

Required screen resolution:

800 x 600 or more.

Required graphics:

Micromax DirectX 9 or later with WDDM 1.0 driver

If your system fulfills all the requirements, continue with the below fixes.

Clearing Certain Attributes Of The Installation Folder

You can try clearing attributes present in the installation folder, which could be the reason for the error. 

For achieving the same, follow the steps below:

  1. Boot the system and navigate to the last screen.
  2. Now, minimize the installer and open the File Explorer.
  3. Navigate to the C:\ drive.
  4. Locate the $WINDOWS.~BT folder and right-click on the problematic folder.
  5. Now open the properties option in the menu. 
  6. Locate the Attribute section in the General tab and uncheck the Read-Only System. 
  7. Now, click on Apply to save the changes.

Reinstall The System Home Version Without Activation

It could be the case that you are trying to install a distinct version, and this is causing you the error in the installation. To tackle this, try installing the home version again but do not activate it while installing. As the installation completes successfully, enter the product key, and your system version will get approved. Now see if it is functioning fine.

Run Windows Update Installer

If nothing has worked so far, try running the windows update installer, which will help you install the windows smoothly. For running the windows update installer, follow the below steps:

  1. Open the Command prompt on the error screen.
  2. Enter D: in the console and hit enter.

It will open the D:\ partition in the console.

  1. Now enter setup and press enter to run the windows update installer. 
Running windows update installer

Now check if the windows could not complete the installation error is gone.

Modify Registry Subkeys

For modifying the registry subkeys, follow the below commands:

  1. Open the Run application for achieving the same, hold the Windows key, and press R. This will open the Run application for you.
  2. Now, type regedit in the input window and hit enter.
  3. After this, the Registry Editor window will get open on your screen.
Configuring registry subkeys
  1. Navigate to the below paths and modify as shown below –

Computer\HKEY_LOCAL_MACHINE\SYSTEM\Setup\Status –> Audit : 0

HKEY_LOCAL_MACHINE\SYSTEM\Setup\Status\ChildCompletion –> Setup.exe: 3

HKEY_LOCAL_MACHINE\SYSTEM\Setup\Status\ChildCompletion –> Audit.exe: 0

HKEY_LOCAL_MACHINE\SYSTEM\Setup\Status\SysprepStatus –> CleanupState: 2

HKEY_LOCAL_MACHINE\SYSTEM\Setup\Status\SysprepStatus –> GeneralizationState: 7

HKEY_LOCAL_MACHINE\SYSTEM\Setup\Status\UnattendPasses –> AuditSystem: 0

5. Now, reboot your system and check if the problem Windows could not complete the installation is gone.

Exit From The Audit Mode

For exiting the Audit Mode, follow the below instructions:

  1. Open the Command prompt on the error screen.
  2. Now enter sysprep /oobe /generalize in the console and hit enter.
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Disabling the audit mode

Now close the Command prompt and try rebooting the system. If you witness the same error:

  1. Again open the Run application. And type regedit, and hit enter. 
  2. Go to the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\State and locate ImageState
Deleting ImageSetup in Registry Editor
  1. Now right-click on it and select the delete option.

Close the command prompt and check if your problem Windows could not complete the installation error is gone.

Rebuild BCD

Step:01 Create a Windows Installation CD/DVD

Before starting, you need to create a Windows Installation CD/DVD. To achieve the same, follow the below steps:

  1. Download the media creation tool.
  2. Now launch the tool and follow the instructions on the screen for creating the Windows Installation CD/DVD.

Step:02 Rebuilding BCD inCommand prompt

Firstly, you need to restart your Windows 10 device. As the restart begins, click the boot option button. You can explore it for your system model name. 

Once you get your boot option key, continue tapping the key while the restart process is running. 

If you do it correctly, then the boot options screen will open up on your screen. Now, do the following steps for rebuilding the BCD:

  1. Open the Repair your computer option.
  2. Now, click on Troubleshoot. Followed by Advanced options. 
  3. And finally, from there, open the Command prompt.
Opening the Command prompt

Now, input the following commands in the shell one by one:

  • bootrec /fixmbr
  • bootrec /fixboot
  • bootrec /scanos
  • bootrec /rebuildbcd

Use proper space as here to run the commands errorlessly.

Run The Installation In Clean Boot Mode

You are here means nothing has worked for you so far. The next thing you could try doing is to run the installation in the Clean boot. 

To run the installation in Clean boot mode, follow the below steps:

  1. Launch the Run application.
  2. Now, enter msconfig in the input window on the Run application and hit enter.
  3. Now you will witness a new pop-up window on your screen. On that, go to the General tab.
Changing system configuration settings
  1. Check the Selective startup and uncheck the Load startup items.
  2. Now go to the Services tab. There check the Hide all Microsoft services and click disable all.
Changing system configuration settings
  1. Go to the Startup tab and open the Task Manager. Now disable all the unnecessary items from there.

Now see if the error Windows could not complete installation error is fixed by now. 

FAQs

Can’t complete Windows 10 install?

If you are unable to install Windows 10, then the issues could be many behind the same. Like the corrupted system files, shut down of update services, or the access prohibition.

Why does Windows fail to install? How do I fix it? 

There exists no particular reason behind it but many. It could be admittance issues, mismatches with the Windows version and the system, or corrupted files. To fix the same, you can try a few quick fixes like using the automatic repair tool, modifying registry subkeys, and running the installation in the clean boot.

I could not complete the install because an update service was shutting down?

Yes, it could be the reason. To fix it, try restarting the Windows update services.