Disable User-mode shadow stack (CET) for Edge

Run CMD or PowerShell as an administrator, and execute the following command:

reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msedge.exe" /v MitigationOptions /t REG_BINARY /d "0000000000000000000000000000002000" /f

You can verify whether the User-mode shadow stack (CET) of Edge is turned off by running Get-ProcessMitigation -Name "msedge.exe" in PowerShell:

PS C:\Users\user> Get-ProcessMitigation -Name "msedge.exe"
...
...
User Shadow Stack:
UserShadowStack                    : OFF
UserShadowStackStrictMode          : OFF
AuditUserShadowStack               : NOTSET
Override UserShadowStack           : False
PS C:\Users\user>

Note: This setting will take effect only after restarting the Edge browser. Please close all running instances of msedge.exe from the Task Manager to ensure that no background Edge processes remain active.

reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msedge.exe" /v MitigationOptions /f