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The User Profile Service Failed the Sign-in [Fix]
Modify the registry and revert the changes
6 min. read
Updated onOctober 4, 2023
updated onOctober 4, 2023
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Not being able tolog intoWindows 10has to be one of the most frustrating problems. And an error message many encounter reads,The User Profile Service failed the sign-in User profile cannot be loaded, in Windows 10.
The problem is widespread, with no single solution working for all users. But there are a few quick troubleshooting tips when you can’t sign into Windows 10 after the user profile service failed the logon.
How do I fix user profile service in Windows 10?
1. Change the registry
After changing the registry, try tologintoWindows 10using your user account and you shouldn’t getThe user profile service failed the sign-inerror.
2. Create a new user account
To fixThe user profile service failed the sign-inerror onWindows 10, some users suggestcreating a new user account.
Since your user account is corrupted, one way to fix it is to create a new one and migrate all your files to it. Be sure tomake the account administratorget maximum permissions.
3. Delete the SID and create a new profile
This step can cause stability issues. Therefore it’s recommended that you create a backup of your registry or even aSystem Restore pointbefore proceeding.
4. Copy the Default folder from a different Windows 10 PC
5. Check the registry
Another quick solution to fix things when you getThe user profile service failed the sign-inerror in Windows 10 is to reconfigure the registry and revert any changes.
6. Replace the NTUSER.dat file
According to users, the login error can occur due to a corrupted NTUSER.dat file. To fix it, find a working version of the NTUSER.dat file.
Get this file from a differentWindows 10PC, or you can use the one from yourPC. It’s stored in:C:\Users\Default
8. Use System Restore
After rebooting, login to your computer normally, and you shouldn’t getThe user profile service failed the sign-inerror in Windows 10.
Before you leave, find out how toset up passwordless sign-in on Windows.
Tell us which fix worked for you in the comments section below.
More about the topics:sign-in issues,windows 10
Milan Stanojevic
Windows Toubleshooting Expert
Milan has been enthusiastic about technology ever since his childhood days, and this led him to take interest in all PC-related technologies. He’s a PC enthusiast and he spends most of his time learning about computers and technology.
Before joining WindowsReport, he worked as a front-end web developer. Now, he’s one of the Troubleshooting experts in our worldwide team, specializing in Windows errors & software issues.
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Milan Stanojevic
Windows Toubleshooting Expert
Before joining WindowsReport, he worked as a front-end web developer. Now, he’s specialized in Windows errors & software issues.
