If you use Windows 11, you might have seen a button called “Clear TPM” in the Windows Security app. This guide will explain what this button does and how you can turn it on or off in simple steps.

What is TPM?

TPM stands for Trusted Platform Module. It’s a little chip inside your computer that helps keep your information safe, like passwords and encryption keys. Think of it as a tiny security guard for your PC.

What Does the “Clear TPM” Button Do?

The “Clear TPM” button resets this security chip to its original state. When you press it, your PC will restart and erase some security info, like your PIN or face/fingerprint login (Windows Hello). So, only use it if you really need to reset your TPM.

Why Turn Off the “Clear TPM” Button?

If you share your computer with others or want to prevent accidental resets, you can turn off the “Clear TPM” button so no one can use it by mistake.

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How to Turn On or Off the “Clear TPM” Button Using Local Group Policy Editor

1. Open Local Group Policy Editor:
   
   Press Win + R, type gpedit.msc, and press Enter.
2. In the window, follow this path:
   
   Computer Configuration > Administrative Templates > Windows Components > Windows Security > Device security
3. Click on Device security in the left panel.
4. Double-click “Disable the Clear TPM button” on the right side.
5. Choose one of these options:
   • Not Configured or Disabled: The Clear TPM button is available.
   • Enabled: The Clear TPM button is turned off (hidden).
6. Click OK to save.
7. Restart your PC to apply the changes.

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How to Turn On or Off the “Clear TPM” Button Using Windows Registry Editor

If you cannot access the Local Group Policy Editor, you can do the same using the Registry Editor.

1. Press Win + R, type regedit, and press Enter to open Registry Editor.
2. Navigate to this folder:
   
   HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindows Defender Security CenterDevice security
3. If the Device security folder doesn’t exist, create it:
   
   Right-click on Windows Defender Security Center > New > Key > name it Device security.
4. Right-click inside the Device security folder (right panel), then select:
   
   New > DWORD (32-bit) Value
5. Name the new value: DisableClearTpmButton
6. Double-click DisableClearTpmButton and set the Base to Decimal.
7. Set the Value data to:
   • 1 to turn off (disable) the Clear TPM button.
   • Delete the DisableClearTpmButton value or set it to 0 to turn on (enable) the button.
8. Click OK and close Registry Editor.
9. Restart your PC to apply the changes.

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Summary

• The Clear TPM button resets your computer’s security chip and affects things like your PIN and fingerprint login.
• You can choose to turn this button on or off to keep control of your device’s security settings.
• Use either the Local Group Policy Editor or the Registry Editor to make this change.
• Always restart your PC after making changes for them to work.

For more detailed info about clearing TPM, visit this Clear TPM guide.