Windows includes support for Structured Exception Handling Overwrite Protection (SEHOP). We recommend enabling this feature to improve the security profile of the computer. The recommended state for this setting is: Enabled. Note: After you enable SEHOP, existing versions of Cygwin, Skype, and Armadillo-protected applications may not work correctly. Fix: (1) GPO: Computer Configuration\Policies\Administrative Templates\MS Security Guide\Enable Structured Exception Handling Overwrite Protection (SEHOP) (2) REG: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\kernel:DisableExceptionChainValidation