How to Block or Allow Screen Capture in Google Chrome: Group Policy and Registry Guide

Certain websites use the getDisplayMedia() API or Desktop Capture Extension to capture your screen. For confidential tasks like online banking, blocking screen capture in Google Chrome enhances security. As a Windows and Chrome policy expert with years of enterprise experience, I'll show you how to manage this via Group Policy Editor (GPO) or Registry Editor.

Block or Allow Screen Capture Using Group Policy Editor

To control screen capture in Chrome on Windows 11/10 Pro or Enterprise, first download and install the official Chrome Group Policy templates from chromeenterprise.google.

1. Press Win + R to open Run.
2. Type gpedit.msc and press Enter.
3. Navigate to: Computer Configuration > Administrative Templates > Google > Google Chrome > ScreenCaptureAllowed.
4. Double-click ScreenCaptureAllowed.
5. Select Disabled to block screen capture.
6. Click OK.

To allow capture, set it to Not Configured or Enabled. For specific origins only (e.g., trusted sites), enable Allow desktop, window, and tab capture by these origins and add origins like:

• ScreenCaptureAllowedByOrigins
• WindowCaptureAllowedByOrigins
• TabCaptureAllowedByOrigins
• SameOriginTabCaptureAllowedByOrigins

Click OK to apply. Restart Chrome for changes to take effect.

Block or Allow Screen Capture Using Registry Editor

For precise control, edit the Registry (use caution; back up first):

1. Press Win + R, type regedit, and press Enter.
2. Click Yes on UAC prompt.
3. Navigate to:

   HKEY_LOCAL_MACHINE\SOFTWARE\Policies

4. Right-click Policies > New > Key, name it Google.
5. Right-click Google > New > Key, name it Chrome.
6. Right-click Chrome > New > DWORD (32-bit) Value, name it ScreenCaptureAllowed.
7. Double-click it: set value to 0 to block, 1 to allow.
8. Restart your PC or Chrome.

To allow specific origins, create a key under Chrome like ScreenCaptureAllowedByOrigins, add REG_SZ values with origin URLs (comma-separated list recommended).

Delete the DWORD or set to 0 for no restrictions. These methods ensure trustworthy control over Chrome's screen sharing features.