How to Fix ‘the User Profile Service failed the logon error’ Issue in Windows 10 PC – Guide
Users attempting to log into their Windows computer may encounter an error due to the inability of the operating system to read their user profile. This can be caused by corrupted or affected files, viruses, malware, or power outages during a Windows update process. The error message may appear as “Unable to load user profile”. Unless upgrading Windows, this issue is usually caused by sudden events such as power failure or malicious programs.
Fix “User Profile Service Failed to Logon” in Windows 10
Boot into safe mode
To start your computer in Safe Mode, press the F8 key while it is booting up. This will bring up a menu of options. Select “Safe Mode” from the list and press Enter. Your computer will then boot into Safe Mode, allowing you to use it with minimal features and programs.
on the login screen
Start your machine by pressing the power button.
Press and hold the Shift key on the login screen, then select Power > Restart to reboot your device.
Choose Troubleshooting to boot your PC to a blue screen with three options.
Press the restart button found in the startup settings of the advanced options menu.
To restart your computer and access Safe Mode with Networking, click the option once the machine has rebooted.
Your computer will reboot in a secure environment.
If you cannot access the login screen
Press and hold the power button on your device until it shuts down.
To begin using your computer, press and hold the power button until the manufacturer’s logo appears, then release.
Do the process twice to get to Windows Recovery Environment (winRE).
Next, complete steps 3, 4 and 5.
Use SFC to check for corrupt files
The “User Profile Service Login Failed” error is likely caused by a corrupted user file. Windows’ System File Checker (SFC) utility can help you find and fix the issue automatically, using the Command Prompt.
Ensure your computer is operating in safe mode to protect it from potential threats.
To open the Command Prompt, users can type “cmd” into the Start menu search bar.
Run the System File Checker by typing “sfc /scannow” into the Command Prompt window and pressing Enter.
Microsoft has announced a new feature for Windows users: automated file repair. The system will scan and fix any corrupted files, with the entire process taking approximately 30 minutes.
Once verification is done, reboot your device and attempt to sign in again.
Restore your computer to a previous state
To use System Restore to fix errors on your computer, first make sure the feature is enabled. If not, enable it and create a restore point manually. Then, if you remember creating a restore point before the error occurred, follow these steps: select System Restore from the Start menu, choose the restore point you created before the error appeared and let Windows do its work. Your computer will be restored to an earlier time when it was working properly.
The Run dialog can be quickly accessed by pressing Windows key + R.
To access System Restore, users should type “rstrui.exe” into the Run box and hit Enter.
To proceed with the System Restore process, select ‘Next’ in the dialog box.
Select a date from the list of restore points to revert your computer to a previous state.
Ensure all boxes are ticked and click ‘Finish’ to complete the process.
Windows has been successfully reset to a previous state, allowing users to log in without difficulty.
Change registry setting
To resolve the “User Profile Service Login Failed” error, create a System Restore point and make some registry changes. This advanced troubleshooting method can help you get back into your system. To set up the Registry correctly, follow these steps.
To access safe mode, follow the instructions in this article.
Open the Run prompt by pressing Windows key + R, then type regedit and hit Enter to access the Registry Editor.
To access the Profile List in Registry Editor, navigate to HKEY_LOCAL_MACHINE > Software > Microsoft > Windows NT > Current Version.
Two files with the same name exist, one with a .bak extension.
To rename a file, right-click it and remove the .bak extension from the end of its name.
Users can now add a .bak extension to files that don’t have one by right-clicking and selecting the option.
Right-click on “State” in the folder containing the renamed file and select “Modify.”
The value data has been reset to zero from its previous value of 8000.
Right-click the RefCount entry and set its Value Data to 0 to complete the process.
Ensure the modifications are finalized and Registry Editor is shut.
Reboot your device and sign in to access its features.
Enable the User Profile Service
Users may find their User Profile service disabled due to a third-party application. To re-enable it, boot your computer into Safe Mode and run a command in the Command Prompt window.
To open Command Prompt with administrator privileges, type “cmd” into the Start menu search bar and select “Run as administrator” from the search results.
To start the Windows 10 Professional Services automatically, users should type “sc config ProfSvc start = auto” into the Command Prompt window and hit Enter.
To start the ProfSvc service, type “sc start ProfSvc” into the command line and press Enter.
Shut down the command prompt and reboot your device.
Log on and use your computer
By following the steps outlined above, you can prevent the “Failed to login to User Profile Service” error from occurring. Additionally, these same methods can be used to diagnose a variety of other Windows errors, making them a useful tool for troubleshooting future computer issues.
Final note
If you’re having trouble logging into your Windows 10 PC, this guide can help. Have questions? Ask us. And don’t forget to share the love by passing it along to your friends.
