When trying to download a file I get an error message that reads "Windows cannot open this file. To open this file,Windows need to know what program created it . Windows can go online to look it up automatically or you can manually select from a list of programs on ypur computer". I let it run automatically and I open sites that are selling software to solve the problem. I have already made the mistake of buying other software that I thought I needed but didn't.If I need software to correct this problem I would have know problem buying one but before I make that decision I thought that I would get some advice.