0x801c0451 Windows Hello Error Code: How to Fix It

Disable sleep mode to fix the issue

by Srishti Sisodia
Srishti Sisodia
Srishti Sisodia
Srishti Sisodia is an electronics engineer and writer with a passion for technology. She has extensive experience exploring the latest technological advancements and sharing her insights through informative... read more
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Alex Serban
Alex Serban
Windows Server & Networking Expert
After moving away from the corporate work-style, Alex has found rewards in a lifestyle of constant analysis, team coordination and pestering his colleagues. Holding an MCSA Windows Server... read more
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  • This error could have appeared if you have sleep mode enabled or have multiple accounts on Windows.
  • To fix it, you need to uninstall the Windows update, reset your PIN or perform a system restore.
0x801c0451 Windows Hello Error Code How to Fix It
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If you encountered the Windows Hello error code 0x801c0451 when setting a PIN, this guide could help! We will discuss some of the expert-recommended solutions to fix the error right after explaining the causes.

What causes the Windows Hello error code 0x801c0451?

There could be various reasons for this Windows Hello error; some of the common ones are mentioned here:

  • Sleep mode enabledSleep mode is helpful but also comes with bugs and errors that could cause this issue. Try disabling sleep mode to get rid of the error.
  • Bad Windows update – A corrupted or interrupted Windows update could cause all sorts of issues. Try uninstalling the update to fix the problem.
  • Multiple accounts – If you see multiple accounts under the Accounts section in the Settings app, it could cause this issue. Change the folder name to resolve the issue.

Now that you know what are the causes of the issue, let’s jump to the solutions.

What can I do to fix the Windows Hello error code 0x801c0451?

Before engaging in advanced troubleshooting steps, you should consider performing the following checks:

  • Try restarting your computer; sometimes, this could fix the error.
  • Make sure Windows has no pending updates.

If these minor tweaks didn’t help you, let us move to the detailed fixes.

1. Disable Sleep mode

  1. Press the Windows key, type control panel, and click Open.Control Panel start menu 0x801c0451
  2. Select View by as Large icons, and click Power Options.Power options 0x801c0451
  3. Click Change plan settings.Change plan settings  Power options 0x801c0451
  4. Locate Put the computer to sleep option, and from the dropdown select Never.Sleep Never
  5. Click Save changes.

2. Change the Microsoft account to a local account

  1. Press Windows + I to open the Settings app.
  2. Go to Accounts, and click Your info.Account -Sign in 0x801c0451
  3. Click Sign in with a local account instead.Accounts 0x801c0451
  4. Select the account and click Next.Click Next 0x801c0451
  5. Enter the password or PIN for the current account.Password or PIN 0x801c0451
  6. Choose the Username, New password, Confirm password, and Password hint for the local account, and click Next.Confirm password 0x801c0451
  7. Click Sign out and Sign in using the new local account.

3. Reset or remove the PIN

  1. Press Windows + I to open Settings.
  2. Select Account, then click Sign-in options.Sign in options 0x801c0451
  3. Click PIN (Windows Hello) and then select I forgot my PIN.I forgot the PIN
  4. Now click Continue.Continue 0x801c0451
  5. Enter your password and Sign in. Enter password 0x801c0451
  6. Now Verify your identity from the options available.Verify the address
  7. Now Set up a PIN and click OK.0x801c0451 NEW PIN

4. Uninstall the Windows update

  1. Press the Windows key, type control panel, and click Open.Control Panel start menu 0x801c0451
  2. Select Category as View by and click Uninstall a program.UNinstall a program
  3. Now click View installed updates.View installed updates 0x801c0451
  4. Locate the update you want to uninstall and click Uninstall.Uninstall update

5. Rename the Accounts folder

  1. Press Windows + R to open the Run console.Run command 0x801c0451
  2. Type the following location and hit Enter: %LOCALAPPDATA%\Packages\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\AC\TokenBroker
  3. In the TokenBroker folder, rename the Accounts folder as Accounts.old.Remove accounts old
  4. Restart your computer.

6. Perform a system restore

  1. Press Windows + R to open the Run dialog box.System Properties 0x801c0451
  2. Type sysdm.cpl and click OK to open System Properties.
  3. Go to the System Protection tab, and click the System Restore button.SystemPropertiesComputerName 0x801c0451
  4. On the System Restore window, select Choose a different restore point and click Next.Next Choose a different restore point
  5. Select the restore point and click Next.Choose a point 0x801c0451
  6. Click Finish to initiate the restoration process.Finish 0x801c0451

Windows will restart and restore to the selected version. If the System Restore point takes too much time, we recommend you check out this informative guide.

7. Contact Microsoft Support

Microsoft Support.

If nothing has worked for you, and you are still stuck with this Windows Hello error code, then we advise you to contact Microsoft Support. Explain the issue in detail and the steps you have taken to fix it. They can help you with advanced troubleshooting steps to resolve the problem.

So, these are methods you can use to fix Windows Hello error code 0x801c0451. Try them and let us know what worked in the comments section below.

Still experiencing issues?


If the above suggestions have not solved your problem, your computer may experience more severe Windows troubles. We suggest choosing an all-in-one solution like Fortect to fix problems efficiently. After installation, just click the View&Fix button and then press Start Repair.

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