I, as well as my father, am having the same issues. I have contacted Microsoft twice and the first time I was told that it had nothing to do with reverting back to Windows 7. The second time they tried to fix the issue and were unsuccessful. They gave me a web address and a phone number. I am now staying up all night just to deal with this issue. I have tried all the "solutions I have seen on this site, as well as some of my own and nothing works. If I get a solution tonight I will let you all know.