Computer Configuration > Administrative Templates > Microsoft Edge
Both
HKLM\Software\Policies\Microsoft\Edge
This policy controls the use of code integrity guard in the browser process, which only allows Microsoft signed binaries to load. Setting this policy to Enabled will enable code integrity guard in the browser process. Setting this policy to Disabled, or if the policy is not set, will prevent the browser from enabling code integrity guard in the browser process. The policy value Audit (1) is obsolete as of version 110. Setting this value is equivalent to the Disabled value. This policy is available only on Windows instances that are joined to a Microsoft Active Directory domain, or Windows 10 Pro or Enterprise instances that enrolled for device management. This policy will only take effect on Windows 10 RS2 and above. Policy options mapping: * Disabled (0) = Do not enable code integrity guard in the browser process. * Audit (1) = Enable code integrity guard audit mode in the browser process. * Enabled (2) = Enable code integrity guard enforcement in the browser process. Use the preceding information when configuring this policy.