I think the trouble you have depends on what you do with the computer. I had a bunch of trouble and I took it in to a computer store. They sold me Eset. I have not had any trouble since. When the subscription came up, the computer store called me and wanted to renew, but Eset had already contacted me on the internet and I had bought it from them.
On those PCMatic commercials, if you pause the feed and look there is a list of companies that protect. Eset is listed on that list. This costs me $80.00 for 2 devices for 2 years. I am very happy with it as it automatically updates and I never have to touch it.
Marcia