Mick, You can leave AVG feedback via this link ( link removed ). AVG Guru
I consider my self a hobbiest computer builder. I recently made an extremely fast machine (ie i5 6600k OC, 850 pro ssd). I have built this same machine multiple times for my business. I have noticed especially with this new machine that it starts and shuts down almost instantly. I just installed AVG internet pro (paid version) and it significantly effects boot and shut off time. This is a clean install.
To sum it up, computers boot and shut down very fast without AVG and once installed they don't. You guys should look into your code. I am disappointed especially for this is the paid version.
Mick, You can leave AVG feedback via this link ( link removed ). AVG Guru