Windows 10 1903 18362.535 (Intel i7-7700HQ, 16GB RAM DDR4, GTX 1070) KAV 2020 20.0.14.1085 (g) Yes, licensed 2 years Yes, every port causes freeze Yes. I used Razer Lancehead TE 2.5 years and all works. I temporarily use Gigabyte M6900 and have this problem from the beginning. When I reconnect the Razer mouse, there is no problem. The Gigabyte mouse has been checked on various computers (unfortunately other antiviruses) and works without problems, freeze occurs only on my laptop when Kaspersky is running. No, in SafeMode everything works without a problem. & 9. Unfortunately, I can't record and generate the logs right now, but I think I have clearly and accurately presented the situation. When I uninstall KAV - freezing does not occur. After KAV install, in mouse driver details appends line with file: C:\WINDOWS\system32\DRIVERS\klmouflt.sys and system start freezing on Gigabyte M6900 mouse connect.