I installed the current EAP 9 in VS 2013 (Windows 8.1) which has R#8. Restarted VS and R# is not running. It's not even showing under "Programs and Features" which means I can't uninstall from there. The Remove button is disabled in the installer. When I try to reinstall, it's completed in a second because it seems it found out it's already installed. Nothing is working right so I went back to R#8.