To disable the Application Error Reporting tool, add a DWReportee value of 1 to following registry keys:
HKEY_CURRENT_USER\Software\Policies\Microsoft\PCHealth\ErrorReporting\DW
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\PCHealth\ErrorReporting\DW
HKEY_CURRENT_USER\Software\Microsoft\PCHealth\ErrorReporting\DW
HKEY_LOCAL_MACHINE\Software\Microsoft\PCHealth\ErrorReporting\DW
