Windows 10, well that didn't last long

Windows 10 has a lot of application incompatibilites, with itself, previous windows programs, and other basic programs. Its really not ready for prime time even now. Thank god.. I can just swap out the hard drive for my previous Windows 7. -- I'll try again after the November update to the RTM.. but really Windows 7 may be the end of the line for Microsoft products you want to use on Windows. -- Why can't they just improve Windows 7. Keep the old UI and -- pay attention -- to things they break? So sad.