I've been using AVG for close to a decade and over the past year, it's become absolutely awful. It's routinely locking my computer up preventing me from doing anything else. It ignores my scheduled scans and just scans whenever it feels like it. This interrupts my work and is absolutely unacceptable.
It didn't use to be like this, but it's been intolerable for months. Even when it's just running in the background, it still is eating up ~20% of my CPU. I'm going to try re-installing, but if this persists, I'm done with the product.