I'm using a HP desktop with Windows 8 pre installed . I turned off fast boot and secure boot and have installed Ubuntu. I can boot into Ubuntu without any problem however I can't boot into windows. When I try it says Error: invalid EFI. So I ran boot repair and now there are multiple options. Some still say the same thing. One goes to a windows menu and gives me the option to repair using a disk but when I use it the computer shuts down. On some of the boot options listed the screen will go black with a blue windows logo in the center and a white "loading" circle under it, I have left it alone for up to 4 hours with it not leaving that screen. And finally one goes to a blue windows looking screen with no text and never loads further, similar to the black screen. Here is the link to my boot repair:
Anyone have any ideas on what's wrong or how to fix it?