After using the recovery cd Windows 10 boots up to a blank screen. Ubuntu 16.04 on drive c. Windows 10 on drive e. Now I can't boot to either operating system. When I turn the pc on all it does is go into the repair mode and fixes drive c. When it finally boots I get the Windows 10 logo and progress wheel and then it disappears and Windows 10 logo reappears flickers and disappears. The pc boots up to Windows I think. But after the logo disappears I get a blank screen, nothing else. Wondering if the pc is repairable at all in its present condition. It is a back up pc that I use for testing. Not critical but I would like to still be able to use it.