I have Windows Vista with AVG antivirus, firewall, malware and Defender. I was offered the new toolbar site etc., HOT, installed it then uninstalled it quite successfully. Then I found this HOT had put an addon of Shopperreport which keeps popping up on the side of the screen when I go to different sites. I went to uninstall programmes and have tried to uninstall many times but it will not go. It has even suggested I do not have the authority to remove this but I am the administrator and I am the only user of my computer. The Defender identified this item and I asked for it to be put in quarantine but it is still there. Can anyone please advise how I can get rid of this addon it is driving me mad? Thank you for any help.