KFA 2019 doesn't cause this problem on my main system. & in several Virtual machines I've KFA 2018 installed & many of them are behaving awkwardly. High disk usage during update & after reboot, occasional system freeze,etc...
Let me tell you something, after this problem first occurred in KIS 2019, I saw an interesting thing. After every reboot, KIS' web antivirus component,IM antivirus component & Mail antivirus component started greyed out. Then after sometimes it turns green. But now, that ain't happening. but problem is that kaspersky is not causing the problem all the time, so it's very hard to pinpoint d culprit for me.
I thought someone on MT might also be facing d same problem & might have already identified d troublemaker. But it seems, this problem is exclusive to me. Thanks anyway for your time.