RE: AVG CUSTOMER SERVICE IS USELESS
I'm sorry but I'm not sure what "remove duplicate" functionality are you missing. Do you mean the remove duplicate files feature, formerly available in the AVG PC TuneUp product?
If so, I have bad news for you. The new PC TuneUp product is not able to find and remove duplicate files anymore. It has the Space explorer feature, which identifies large folders for you and you can do a manual cleanup, but the functionality is different. We received many complaints on the remove duplicate feature from customers who managed to delete not only the duplicate files but also the "originals". It is generally safer to not include this feature with AVG PC TuneUp.
If you need the "remove duplicate" functionality, you can search for third party tools. Searching for "duplicate file finder" should provide you with several results.
Hope this helps.