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How to Fix “The User Profile Service Failed the Logon”

he “User Profile Service Failed the Logon” error is a frustrating and often confusing issue encountered by Windows users when attempting to log into their accounts. This error prevents users from accessing their personal profiles and can lead to a loss of important data and settings. However, it is not an insurmountable problem. In this article, we will delve into the causes behind this error and provide step-by-step solutions to fix it like, Ways to Fix ‘No Battery Is Detected’ Error on Windows.

The User Profile Service Failed the Logon

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Understanding the Error:

The “User Profile Service Failed the Logon” error typically appears when a user tries to log into a Windows account. Instead of gaining access to their desktop and files, they are presented with an error message that says, “The User Profile Service failed the logon. User profile cannot be loaded.” This can be alarming, as it seems to suggest a critical issue with the user’s account.

Reasons why The User Profile Service Failed the Logon

  1. Corrupted User Profile: One of the most common causes of this error is a corrupted user profile. This corruption can occur due to various reasons, including system crashes, improper shutdowns, or even malware infections.
  2. Registry Issues: The Windows registry contains vital information about user profiles and system settings. If the registry becomes corrupt or experiences errors, it can lead to the failure of the user profile service during logon.
  3. Disk Space: Insufficient disk space on the system drive (usually the C: drive) can lead to problems while creating or loading user profiles during logon.
  4. User Profile Files: If the files associated with the user profile are damaged or missing, Windows might not be able to load the profile properly.
  5. User Account Corruption: In some cases, the user account itself might become corrupted, leading to logon failures.

Solutions of User Profile Service Failed the Logon

Solution 1: Restart the Computer

Sometimes, the error can be caused by temporary glitches. A simple restart might resolve the issue.

Solution 2: Restart in Safe Mode

Booting into Safe Mode allows you to access the operating system with only essential services and drivers running. This can help identify if third-party software is causing the issue.

  1. Restart your computer.
  2. Press the F8 key repeatedly before the Windows logo appears.
  3. Choose “Safe Mode” from the Advanced Boot Options menu.
  4. Log in with an administrator account.

Still if you have any confusion you can visit here to know How to Start Windows in Safe Mode in details.

Solution 3: Create a New User Account

Creating a new user account can help you bypass the corrupted profile.

  1. Boot into Safe Mode.
  2. Open the Control Panel and navigate to “User Accounts” or “User Accounts and Family Safety.”
  3. Select “User Accounts” and then “Manage another account.”
  4. Click on “Create a new account” and follow the prompts.
  5. Restart your computer and log in with the new account.

Solution 4: Fix User Profile Registry

If the user profile registry is corrupt, you can try fixing it by editing the registry.

  1. Boot into Safe Mode.
  2. Press Win + R to open the Run dialog, then type regedit and press Enter.
  3. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList.
  4. Look for the folder with the name of your affected user profile. It will end with .bak.
  5. Rename the .bak folder by removing the .bak extension.
  6. Find the folder with the same name as your user profile (without the .bak extension) and add .old to the end of it.
  7. Rename the newly renamed .bak folder (without the .bak extension) to match your user profile folder’s original name.
  8. Close the Registry Editor and restart your computer.

Fix User Profile Registry

Solution 5: Check Disk Space

Ensure that you have sufficient disk space on your system drive. Windows needs space to create and load user profiles.

Solution 6: System Restore

If you have a system restore point created before encountering the error, you can use it to revert your system back to a working state.

  1. Boot into Safe Mode.
  2. Open the Control Panel, then navigate to “System and Security” > “System” > “System Protection.”
  3. Click on “System Restore” and follow the prompts to restore your system to a previous state.

System Restore

Solution 7: Use System File Checker (SFC) and DISM

The System File Checker (SFC) tool and the Deployment Imaging Service and Management Tool (DISM) can help repair corrupted system files.

  1. Boot into Safe Mode with Command Prompt (use the Advanced Boot Options menu).
  2. In the Command Prompt, type sfc /scannow and press Enter. Wait for the scan to complete and follow any on-screen instructions.
  3. After SFC is done, type DISM /Online /Cleanup-Image /RestoreHealth and press Enter. Let the DISM tool complete the scan.

Use System File Checker

Solution 8: Delete Old Profile and Create a New User Profile

If none of the above solutions work, you might need to recreate your user profile. This involves creating a new profile and transferring your files from the old one.

  1. Create a new user account following the steps mentioned earlier.
  2. Boot into Safe Mode and log in with the new account.
  3. Back up your data from the old profile to an external drive.
  4. Delete the corrupted user profile from the “User Accounts” section in the Control Panel.
  5. Restart your computer and log in with the new account.
  6. Transfer your backed-up data to the new profile.

Create a New User Profile


Encountering the “User Profile Service Failed the Logon” error can be a frustrating experience, but with the right approach, it can be resolved. The solutions mentioned in this article address various potential causes of the error, from corrupted user profiles to registry issues. Remember to always back up your important data before attempting any solutions that involve editing the system’s registry or user profiles. If the problem persists despite trying these solutions, it might be worth seeking professional help to diagnose and fix the issue.

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