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How to Fix PIN Login Not Working Error on Windows 11: Step-by-Step Solutions

Many Windows 11 users prefer signing in with a PIN because it is quick and secure. However, sometimes the PIN login feature may stop working, causing frustration. This article will guide you through simple, effective steps to fix the PIN login not working error on Windows 11.

We will start with the easiest solutions and gradually move to more advanced ones. Each step is explained clearly to help you understand why it is necessary. By the end of this guide, you should be able to sign in using your PIN without issues.

Before we begin, it is important to verify a few things to avoid unnecessary troubleshooting. Let’s look at some quick checks.

Follow along carefully to restore your PIN login and improve your Windows 11 sign-in experience.

Quick Note: Prerequisites and Initial Checks

  • Check your keyboard: Ensure your keyboard is working correctly, especially if your PIN includes numbers or symbols.
  • Verify Caps Lock and Num Lock: Sometimes incorrect PIN entry is caused by Caps Lock or Num Lock being on or off unintentionally.
  • Internet connection: Make sure your device is connected to the internet, as some sign-in options need connectivity.
  • Windows updates: Confirm that your Windows 11 system is up to date. Updates often fix bugs that could affect PIN login.

Step 1: Restart Your Computer

Restarting your computer is the simplest fix and often resolves minor glitches. When you restart, Windows refreshes its system files and services, which might solve the PIN login issue.

  1. Click on the Start menu.
  2. Select the Power icon.
  3. Choose Restart and wait for your PC to reboot.
  4. Try logging in again using your PIN.

If the problem persists, proceed to the next step.

Step 2: Remove and Re-Add Your PIN

Sometimes, the stored PIN data becomes corrupted. Removing and adding your PIN again can fix this.

  1. Press Windows + I to open Settings.
  2. Go to Accounts > Sign-in options.
  3. Under PIN (Windows Hello), click Remove.
  4. Confirm the removal by entering your Microsoft account password.
  5. Once removed, click Add to create a new PIN.
  6. Enter and confirm your new PIN, then save it.
  7. Restart your computer and try logging in with the new PIN.

Re-adding your PIN refreshes the login credentials and can solve underlying issues.

Step 3: Run the Windows Troubleshooter for Sign-in Issues

Windows has built-in troubleshooters that detect and fix common problems automatically. Using the sign-in troubleshooter can identify PIN-related glitches.

  1. Open Settings by pressing Windows + I.
  2. Navigate to System > Troubleshoot > Other troubleshooters.
  3. Find Keyboard or Windows Hello (depending on available options) and click Run.
  4. Follow the on-screen instructions to complete the troubleshooting process.
  5. Restart your PC and check if the PIN login works.

Step 4: Check and Restart the Windows Biometric Service

The Windows Biometric Service supports Windows Hello functions, including PIN login. Restarting this service can fix related errors.

  1. Press Windows + R to open the Run dialog.
  2. Type services.msc and press Enter.
  3. In the Services window, scroll down to find Windows Biometric Service.
  4. Right-click it and select Restart. If it is not running, select Start.
  5. Close the Services window and restart your PC.
  6. Try signing in with your PIN again.

Step 5: Reset the NGC Folder Where PIN Data is Stored

Your PIN information is stored in a system folder called NGC. If this folder is corrupted, your PIN won’t work. Resetting it can fix the issue.

Note: This step requires administrator access and caution because it involves system folders.

  1. Press Windows + E to open File Explorer.
  2. Navigate to C:WindowsServiceProfilesLocalServiceAppDataLocalMicrosoft.
  3. If you cannot see the AppData folder, enable hidden files by clicking View > Show > Hidden items.
  4. Find the NGC folder and right-click it.
  5. Select Properties > Security tab.
  6. Click Advanced, then change the owner to your user account.
  7. Grant yourself full control permissions.
  8. After changing permissions, delete all files inside the NGC folder (do not delete the folder itself).
  9. Restart your computer.
  10. Go to Settings > Accounts > Sign-in options and set up your PIN again.

This step clears corrupted PIN data and forces Windows to create fresh credentials.

Alternative Methods and Advanced Options

If the above steps do not resolve the issue, consider these options:

  • Create a new user account: Sometimes, user profiles get corrupted. Creating a new account can help determine if the problem is profile-specific.
  • Use System Restore: If the PIN login stopped working recently, restoring Windows to an earlier state might fix the problem.
  • Reset Windows 11: As a last resort, resetting Windows while keeping your files can resolve deep system issues.

Frequently Asked Questions (FAQs)

Why does my PIN login suddenly stop working on Windows 11?

It can happen due to corrupted PIN data, system updates, or conflicts with Windows Hello services. Hardware issues like keyboard malfunction can also cause login problems.

Can I use my password instead of PIN if PIN login fails?

Yes, Windows always allows you to log in with your Microsoft account password if the PIN does not work.

Is it safe to delete files inside the NGC folder?

Yes, but only if you follow the correct procedure and have administrator rights. Deleting these files forces Windows to reset your PIN credentials.

Do I need internet access to use PIN login?

No, PIN login works offline because it is stored locally. However, some Windows Hello features may require internet for setup or sync.

Will removing and re-adding my PIN delete any personal data?

No, changing your PIN only affects sign-in credentials and does not delete any personal files or settings.

When Nothing Works

If none of the above solutions fix the PIN login error, consider these final steps:

  • Contact Microsoft Support: They can provide specialized help and guidance for your issue. Visit Microsoft Support.
  • Use the local password login: Temporarily use your password to access your PC while seeking support.
  • Consider professional IT assistance: If you are uncomfortable performing advanced steps, a technician can help safely resolve the problem.

Conclusion

The PIN login not working error on Windows 11 can be frustrating but is usually fixable with simple steps. Starting with basic checks and restarting, then moving to removing and re-adding your PIN, often resolves the issue. Running troubleshooters and managing system services can help with more stubborn problems.

Remember that resetting the NGC folder fixes corrupted PIN data but should be done carefully. Always keep your Microsoft account password handy as a backup login method. If all else fails, Microsoft Support and professional help are available to get your sign-in back to normal.

Follow these steps patiently, and your PIN login should work smoothly again, helping you sign in quickly and securely on Windows 11.

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