I had the same problem, clean install Win 8 Pro x64bit. I made it somehow work... What I did? 1. Set to run Evernote with admin privileges (probably not necessary but I did it). 2. I used Chrome extension to login, set to Remember me, clip the page in this forum. I opened the clipped note on the web, tried to edit and save. 3. Run the Evernote app from Metro, not from the Desktop. (I think this step is the solution.) Fortunately, it works now.