I mean that sometimes even rebooting there is no letter of patch, but indeed is installed, in that cases it's a bug... rarely, but sometimes may occur...
P.S. I tried dumping Kaspersky with ESET but the latter was causing my facebook games to stutter like hell. In the end, I had no choice but to get rid of ESET. At the moment, I'm using WD and everything is smooth as silk. Not sure, if I should install Kaspersky again!
As I said, that GUI bug (absence of letter patch) is very rarely... usually if no letter it's because the user did not reboot the system to apply the patch.
Kaspersky is one product that I see does well in all the tests. Other products results do differ in different tests including Bitdefender thats next to Kaspersky in almost all the tests.