Deleting system root certificates might prevent some Windows components from working properly. The list of system critical ...

Deleting system root certificates might prevent some Windows components from working properly. The list of system critical root certificates can be reviewed at http://support.microsoft.com/?id=293781. If Update Root Certificates is installed, any deleted third-party root certificates will be restored automatically, but the system root certificates will not. Do you want to delete the selected certificate(s)?