Fix: User Profile Service Failed the Sign-In on Windows 10 & 11

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You’re trying to log into your Windows computer, but suddenly, you see an error message: “User Profile Service failed the sign-in.” Don’t panic! This issue is common in Windows 10 and 11, and it’s fixable.

Let’s break it down in simple terms and go step by step to get you back into your computer.

Why Does This Happen?

There are a few reasons why this might occur:

  • Your user profile is corrupted.
  • Windows updates caused an issue.
  • The profile folder got deleted or moved.
  • There’s a problem with system files.

We’ll go through different solutions to fix this.

Solution 1: Restart Your Computer

It sounds too simple, but sometimes, a quick restart is all it takes. Shut down your computer completely, wait a few seconds, and then turn it back on.

Solution 2: Boot into Safe Mode

If restarting doesn’t help, try booting into Safe Mode. Safe Mode loads Windows with only the essential files, which can help fix the issue.

  1. Hold down the Shift key and click Restart from the Start menu.
  2. Click Troubleshoot > Advanced options > Startup Settings.
  3. Click Restart and then choose Enable Safe Mode (press the number key for the option).

Once in Safe Mode, restart your computer normally and see if the issue is gone.

Solution 3: Create a New User Account

If your profile is damaged, creating a new one can help.

  1. Boot into Safe Mode (use the steps above).
  2. Press Win + R, type cmd, and press Enter.
  3. Type the following command and press Enter:

    net user NewUser /add
  4. Restart your computer and log in with the new account.

If the new account works fine, you can transfer your files from the old account.

Solution 4: Fix the User Profile in Registry

This involves editing the Windows registry, so be careful and follow these steps exactly.

  1. Boot into Safe Mode.
  2. Press Win + R, type regedit, and press Enter.
  3. Go to:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
  4. Find two folders with names starting with S-1-5. One will have .bak at the end.
  5. Right-click the one without .bak and rename it by adding .old at the end.
  6. Right-click the one with .bak and remove .bak from the name.
  7. Close the Registry Editor and restart your computer.

Solution 5: Run System File Checker

Corrupt system files might be causing the problem. To fix them:

  1. Boot into Safe Mode.
  2. Press Win + R, type cmd, and press Ctrl + Shift + Enter to run as administrator.
  3. Type the following command and press Enter:

    sfc /scannow
  4. Wait for the process to complete, then restart your computer.

Solution 6: Restore Your Computer

If none of the above methods work, try restoring your system to a previous point.

  1. Boot into Safe Mode.
  2. Press Win + R, type rstrui, and press Enter.
  3. Follow the steps to restore to an earlier date.

This will bring back your system to a time before the issue started.

Final Thoughts

Getting locked out of your profile is frustrating, but don’t worry! By following these steps, you can fix the issue and get back to work. If none of the fixes work, you may need to reinstall Windows, but in most cases, one of these methods should do the trick. Good luck!