Dantte :
Goto
https://www.av-test.org for comparisons of software, this is your best resource for any and all info related to AVs and malware.
As far as security goes, MS Defender got a 98.8%, Kaspersky has ALWAYS been 100%. This is close enough to ignore the question of "who's product is more secure..."
BUT, when you compare the system resources each piece of software uses, MS Defender is a hog and a PC takes a massive performance hit of upto 50% in some instances with most other categories in double digits (37% and 29%); while Kaspersky only maxes out at 23% in the same 50% category as Defender and with most others in single digits (2% and 8% respectively). This alone should be alarming enough to disable MS Defender and get a 3rd party solution; how can an embedded program tax a system at this level while at the same time providing LESS security?
I question their results actually. How would a high end PC install programs slower than a standard PC? A standard PC has a HDD which maxes at normally 100MB/s writes. A high end PC will have, at minimum, a SSD with 500MB/s writes. That's 5x the speed not to mention the IOPS which the SSD destroys a HDD in.
Yet at the same time the download speed jumped by 90% from a standard to high end PC. Unless the "standard" PC had a piss poor NIC and piss poor CPU that should not happen. Most high end and standard PCs use either a Realtek or Intel NIC. Some high end ones may have a Killer NIC but I doubt theirs did as they are only in a few mobo brands. They should all be 1Gbps NICs as well. So how did the program affect it that much? And how did it, again on a high end PC where downloads went vastly faster, cause install speeds to get worse from the standard PC?
Actually I found my answers. Because their setup is piss poor.
This is what that site uses:
Specification "Standard PC": Intel Xeon X3360 @ 2,83GHz, 4 GB RAM, 500 GB HDD
Specification "High end PC": Intel i7 3770 @ 3,40GHz, 16 GB RAM, Samsung 512 GB SSD
The "high end" PC is OK and has what I would expect drive wise but the CPU is old. In fact a new i3 7350K can provide i7 2600K performance with less cores.
That said, the "standard PC" is just bad. The CPU is based on Yorksfield which is almost 10 years old. Very few people will have a system that old. Most will be on Core I or AMD FX by now and it is a bad way to fully test.
I still have no idea how the High end beat the Standard system in network so badly.
As for you issues, maybe Kaspersky needs to work on their notifications to the Security Center. No one else seems to have issues.