User Profile Service Failed the Sign-in on Windows 11 [Fix]

Explore the expert-tested ways to fix the error

by Srishti Sisodia
Srishti Sisodia
Srishti Sisodia
Srishti Sisodia is an electronics engineer and writer with a passion for technology. She has extensive experience exploring the latest technological advancements and sharing her insights through informative... read more
Reviewed by Alex Serban
Alex Serban
Alex Serban
Windows Server & Networking Expert
After moving away from the corporate work-style, Alex has found rewards in a lifestyle of constant analysis, team coordination and pestering his colleagues. Holding an MCSA Windows Server... read more
Affiliate Disclosure
  • This issue could be due to improper Windows updates, corrupt registry entries, or corrupt user profiles. 
  • This guide covers all the available solutions to fix the problem.
user profile service failed sign-in windows 11

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If you have encountered a User Profile Service that failed the sign-in on Windows 11 startup screen, it mostly means the user profile files are corrupt or failed to start. 

In this guide, we will discuss all the available troubleshooting methods to fix the problem right after talking about the causes. Let’s start! 

What causes the user profile service failed the sign in on Windows 11?

Expert tip:


Some PC issues are hard to tackle, especially when it comes to missing or corrupted system files and repositories of your Windows.
Be sure to use a dedicated tool, such as Fortect, which will scan and replace your broken files with their fresh versions from its repository.

There could be various reasons why you can’t log in; some of the common ones are mentioned here: 

  • Improper Windows Update – An interrupted or unfinished update or crash could corrupt host files required for UAC to work correctly, and it could cause an error. You need to install all the pending Windows updates to fix it.
  • Resizing partitions –  While resizing the partition, often, those parts could get corrupted, leading to a corrupted user profile.
  • Corrupt Windows registry – If there are incorrect values in the registry or a corrupt registry, then it could cause the issue. To fix it, you need to make some tweaks in Registry Editor.
  • Antivirus interference – If an antivirus program is scanning your computer when you log in, it can stop you from using a user profile.
  • Improper shutdowns and restarts – If you don’t log out or shut down your computer properly, you may encounter this error. Always shut down your computer using the standard way once your work is complete.

How can I fix the user profile service failing the sign-in on Windows 11?

Before moving to the actual troubleshooting methods, you can go through these preliminary checks: 

  • Restart your computer. 
  • Shut down your computer.

1. Check for Windows updates 

  1. Press Windows + I to open the Settings app.
  2. Go to Windows Update,  and click Check for updates.Windows Update Check for updates -user profile service failed sign-in windows 11
  3. If available, click Download and Install. While installing the updates, your computer will restart. 

2. Replace the NTUSER.DAT file from a working profile 

  1. Press Windows + E to open Windows Explorer.
  2. Follow this path: C:\Windows\Users
  3. Now click View, then select Show. Now choose Hidden itemsCheckmark hidden items
  4. Locate and double-click the Default folder.
  5. Rename the NTUSER.DAT file into anything you like. NTUser rename
  6. Next, go to the working user profile folder, and copy the NTUSER.DAT file.Copy the file
  7. Now paste it into the Default folder.Default folder paste

3. Delete the local user account causing the issue

  1. Press Windows + R to open the Run window. netplwiz
  2. Type netplwiz and click OK to open the User Accounts window.
  3. You will get the User Account Control; enter your username and password if prompted.
  4. Click the Remove option to delete the user account.
  5. Click OK to confirm your choice.
  6. Press Windows + L to exit the local account logon window. Restart your PC to save the changes. 

4. Use the Command Prompt

  1. Press the Windows key, type CMD, and click Run as administrator.DOS COmmand Prompt
  2. Copy and paste the following commands one by one and press Enter after every command: DISM /Online /Cleanup-Image /CheckHealth DISM /Online /Cleanup-Image /ScanHealth DISM /Online /Cleanup-Image /RestoreHealthDISM user profile service failed sign-in windows 11
  3. Type the following command to repair system files and press Enter: sfc\scannowSFCSCANNOW CMD
  4. Restart your computer to let the changes take place. 

5. Use the Registry Editor in Safe mode

5.1 Enter Safe Mode

  1. Press Windows + I to open the Settings app. 
  2. Go to System, and click Recovery.System - recovery
  3. Locate Advanced startup, and click Restart now.Advanced Startup
  4. On the Choose an option screen, click TroubleshootChoose an option - Troubleshoot
  5. From the Troubleshoot page, click Advanced optionsAdvanced options
  6. On the Advanced options screen, choose Startup settings.Startup Settings
  7. Now select F4 to start your computer in safe mode.Safe mode

5.2 Tweak Registry settings

  1. Press Windows + R to open the Run dialog box. REGEDIT RUN COMMAND
  2. Type Regedit and click OK to open Registry Editor
  3. Navigate to this path: Computer\HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\ProfileList
  4. Check the entries under ProfileList for duplicates. The entries will have similar names, and one will have a .bak file. Rename the .bak extension to .ba
  5. For the next duplicate entry, rename it but add the .bak extension. Remove all the other extensions if duplicate entries are present. Profile list user profile service failed sign-in windows 11
  6. Now delete the .Ba extension from the entry that you renamed
  7. Select the entry and double-click the State key from the left pane. Change the Value data from 1 to 0 and click OKChange the value
  8. Now double-click RefCount and modify the Value data from 0 to 1. Click OK
  9. Close the Registry and restart your computer in normal mode. 

6. Perform a system restore 

  1. Press the Windows key, type Control Panel, and click Open.CP
  2. Select Large icons for View as and click RecoveryRecovery Control Panel user profile service failed sign-in windows 11
  3. Click Open System RestoreChoose a point
  4. Select Choose a different restore point in the System Restore window and click NextNext Choose a different restore point
  5. Choose the restore point and click NextChoose a point
  6. Click Finish, and the computer will restart. It will revert all system settings and changes in Registry values. Finish Restore point

7. Reset the Windows

  1. Press Windows + I to open the Settings app.
  2. Go to System, then click Recovery.System - recovery user profile service failed sign-in windows 11
  3. Now select Reset this PC, and click Reset PCRESET
  4. Select Keep my files or Remove everything.Choose an option
  5. On the How would you like to reinstall Windows page, select Cloud downloadCloud Download
  6. On the Additional settings page, click NextAdditonal settings
  7. Wait for the process to complete.

So these are some of the methods to fix the User Profile Service failed sign-in on Windows 11. Try them and let us know what worked in the comments section below.

Still experiencing issues?


If the above suggestions have not solved your problem, your computer may experience more severe Windows troubles. We suggest choosing an all-in-one solution like Fortect to fix problems efficiently. After installation, just click the View&Fix button and then press Start Repair.

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