Quite a few people here use MSE and recommend it a lot. I understand MSE is going to be part of Windows 8. I know we won't really know until Windows 8 comes out but I've got a couple questions. If a person wants to install a third party AV is the MSE going to cause a problem. We all know you are only supposed to have one AV installed and most AV makers have a cleanup tool. The other question is do you think Europe is going to have a hissy fit like they did over IE?