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

Explore the expert-tested ways to fix the error

Author

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

Updated on March 13, 2023

Reviewed by 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

998

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.

XINSTALL BY CLICKING THE DOWNLOAD FILE

Fix Windows 11 OS errors with Fortect:
This tool repairs common computer errors by replacing the problematic system files with the initial working versions. It also keeps you away from system errors, BSoDs, and repairs damages made by malware and viruses. Fix PC issues and remove viruses damage now in 3 easy steps:

Download and Install Fortect on your PC
Launch the tool and Start scanning to find broken files that are causing the problems
Right-click on Start Repair to fix issues affecting your computer’s security and performance

Fortect has been downloaded by 0 readers this month.

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!

Expert tip:

SPONSORED

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.

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

Press Windows + I to open the Settings app.
Go to Windows Update, and click Check for updates.
If available, click Download and Install. While installing the updates, your computer will restart.

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

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

3. Delete the local user account causing the issue

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

4. Use the Command Prompt

Press the Windows key, type CMD, and click Run as administrator.
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 /RestoreHealth
Type the following command to repair system files and press Enter: sfc\scannow
Restart your computer to let the changes take place.

5. Use the Registry Editor in Safe mode

5.1 Enter Safe Mode

Press Windows + I to open the Settings app.
Go to System, and click Recovery.
Locate Advanced startup, and click Restart now.
On the Choose an option screen, click Troubleshoot.
From the Troubleshoot page, click Advanced options.
On the Advanced options screen, choose Startup settings.
Now select F4 to start your computer in safe mode.

5.2 Tweak Registry settings

Press Windows + R to open the Run dialog box.
Type Regedit and click OK to open Registry Editor.
Navigate to this path: Computer\HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\ProfileList
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
For the next duplicate entry, rename it but add the .bak extension. Remove all the other extensions if duplicate entries are present.
Now delete the .Ba extension from the entry that you renamed
Select the entry and double-click the State key from the left pane. Change the Value data from 1 to 0 and click OK.
Now double-click RefCount and modify the Value data from 0 to 1. Click OK.
Close the Registry and restart your computer in normal mode.

6. Perform a system restore

Press the Windows key, type Control Panel, and click Open.
Select Large icons for View as and click Recovery.
Click Open System Restore.
Select Choose a different restore point in the System Restore window and click Next.
Choose the restore point and click Next.
Click Finish, and the computer will restart. It will revert all system settings and changes in Registry values.

7. Reset the Windows

Press Windows + I to open the Settings app.
Go to System, then click Recovery.
Now select Reset this PC, and click Reset PC.
Select Keep my files or Remove everything.
On the How would you like to reinstall Windows page, select Cloud download.
On the Additional settings page, click Next.
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?

SPONSORED

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.

Was this page helpful?

Start a conversation

comments

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