Learning from experience release patch 19.5.0.145, I hope in future Norton does not do the testing to the end user again for each release of new patches until the patch is fix. It's better to test the patch to the limited user, we think we still remember what happened to one of the vendor after the release of the update patch that caused the "blue scree" on a particular OS, this is to avoid any inconvenience to the user in the future.