I paid for Kaspersky during three or four years. What I noticed was that, prior to the license expiration, this last edition pushed pop ups on my screen constantly. Along, it seemed like it was slowing the computer on purpose.

I read an article saying what you comment, and I decided to try without. Feels a bit odd and I'm slightly paranoid, but this argument pushed me to follow you: it's not a good idea to give critical access to a 3rd party software that might be adding more bugs to you "backdoor policy".