The user profile service failed, the error of Login In Windows 10 it happens when your user profile gets corrupted. This happens when your operating system cannot find your profile in the system directory. This annoying error can be fixed with the methods that I will show you in this article.
What is a profile?
A user profile represents a collection of settings and information associated with a user. It is defined as a digital representation of the identity of the user and helps to associate characteristics with a user. User profiles store information for attributes such as system needs, general data, restrictions, and application settings.
Helps specify terms for certain functions in the system, such as profile visibility, color themes, preferred languages, date format, etc. User profiles can be created, modified and deleted according to choice.
What Causes User Profile Service to Fail Login Failure?
They are quite a few reasons for this error to occur on your Windows 10 PC.
Possible reasons are:
- The user profile in the C: / Users / (username) directory was manually removed without following the proper procedure. When a profile is manually deleted, the Security Identifier (SID) is still present and the operating system will keep trying to load the profile that has a nonexistent profile path. That is why the profile does not load.
- User profile was renamed manually without proper procedure which led to profile corruption.
- There was a problem with the user profile entering the backup state.
- Corrupt user profile
- Antivirus that scans and locks user profile files at authorization time can also cause the error.
How to fix user profile service failed login error?
Here, I will show you the best possible methods on how to fix User Profile Service failed login error.
Note: before trying the methods, restart your PC
1. Boot into safe mode
Safe mode loads the computer with the minimum amount of drivers and services. When Windows doesn’t load properly, Safe Mode starts without a hitch.
Now, here is how to boot into safe mode.
- Make sure your PC is off
- Now, press the power button to turn on the PC and hold it until it shuts down.
- Repeat the process 2-3 times until Automatic Repair Preparation appears.
- Let Windows diagnose your PC
- Then click on ‘Troubleshoot’ and then on ‘Advanced Options’
- Then click on the ‘Start’ settings to continue.
- Click ‘reboot’ and then press 4 on your keyboard to load in safe mode.
Now uploading in safe mode will probably fix the error and you can upload it to your profile.
2. Delete the corrupted user profile from the user account
This method is an attempt to delete the corrupted profile and replace it with the default one
Note: The User will lose the profile data that is corrupted.
If you don’t have an administrator account, do the following to create one.
- Boot into safe mode and enable the Built-in Manager and then log out of the corrupted profile and log in to Manager.
Open command prompt at startup and enable built-in manager, then reboot and log into manager.
- Since you are now in the administrator profile, backup everything you don’t want to lose from the corrupted profile’s C: / Users / (username) directory to another location. Then delete the folder.
- Now press ‘Windows + R’ to open the dialog Run, scribe ‘ regedit ‘ and click ‘ To accept ‘
- This will take you to the Registry Editor where you need to find this location.
HKEY_LOCAL_MACHINE SOFTWARE Microsoft Windows NT CurrentVersion ProfileList
- Now find the SID key in the Profile list (usually, which has a .bak extension) and look at the value ProfileImagePath to see if it is for the same user account name (ex: B) that has the user profile error.
- Otherwise, continue looking for the SID key.
- After finding it, right click and hold the SID key (for example:… -1014.bak) and delete it.
- Click Yes to confirm the removal of the SID key.
- If there are multiple SID keys with the same number but no .bak extension, remove them all.
- After deleting, close the registry editor.
- Now check if you can log in to the affected user profile.
- If yes, copy all backup files back to the user’s profile.
This method replaces the affected user profile with a new one and allows you to access the user profile.
3. Alternative method
- Press ‘Windows + R’ to open the dialog Run, scribe ‘ regedit ‘ and press ok
- After opening Registry Editor, it was given the location
HKEY_LOCAL_MACHINE SOFTWARE Microsoft Windows NT CurrentVersion ProfileList;
- Next, determine your user profile by looking at the ProfileImagePath parameter.
- If you find that your user profile and registry key name does not end with bak, change the value of the 32-bit parameters DWORD state and refcount to (create them manually if they are not present)
- Suppose there are two registry keys in the profile tree, just remove the .bak extension from them or refer them to the main section.
- Verify that the parameters are set to .
If this doesn’t work, create a new profile and copy the profile data there.
These are the possible ways in which you can correct the User profile service and not the login failure on your Windows 10 PC. I hope you were able to clearly understand and perform the steps to correct the error.
If the issue is not resolved or you are having difficulty understanding or performing any of the steps, feel free to comment below.