My PC is a new Windows7 Pro 64 bit using IE, and when trying to download Adguard from their website, rather than 'Run' coming up in the download dialoague box at the bottom of the screen, I get the option 'Open'. Upon clicking 'Open', it asks me which program I would like to open it with. I have no idea. Could someone please walk me through the steps I need to take from here? Thanks.