Recently got a new Dell XPS15 laptop. The laptop came with Windows 8 by default (no provided installation media). Have been having some real difficulties with dual booting Ubuntu 12.04 and Windows 8. Running on EFI, in installed ubuntu, after which grub would not boot into Windows, I used a Ubuntu systems disk and followed the steps to restore grub via boot-repair, after which everything was working correctly.
For two weeks this was working, then today suddenly I could not boot into windows, I decidedly ran boot-repair again, however this did not solve the issue. This time, I noticed in the grub boot menu some differences in the item names, now have:
- Windows UEFI recovery bootmgfw.efi
- Windows Boot UEFI recovery
The first two options are producing a blue windows 8 screen with the follwing message:
"The boot configuration data file is missing some required information 0xc0000035"
The EFI/Dell lines produce a similar blue windows 8 screen with the following message:
"A required device isn't connected or can't be accessed 0xc0000225"
None of the above options are working. The only thing that has changed over the past days or so was ubuntu was updated to 3.2-36 kernel, but I was still able to access windows just yesterday.
Below in a link to my boot-repair BIS:
any help would be appreciated.