I just purchased a "HP Pavilion 15-B055ca (C7C80UA#ABL) Ultrabook" from my local computer store the other day, as well as an SSD hard drive.
I removed the original 500GB HDD, installed a 120GB SSD, loaded an Ubuntu live CD via USB and used "GParted" to first shrink the windows partitions on the 500GB HDD and then copy them onto my SSD, leaving some space to dual boot Ubuntu 12.10 later on...
I had to re-flag my windows partition to "boot", and I wasn't able to copy over a small partition with the drive formatted to "msft" I believe (probably a proprietary Microsoft formatting that GParted couldn't deal with?), as well as enable legacy mode on my UEFI capable motherboard, but I was finally able to run my pre-installed version of Windows 8 on an SSD, after copying it from the HDD originally provided by HP. I felt pretty good about myself after that! It's an appreciably noticeable difference, that's for sure.
I now wish to disable legacy mode and re-enable secure boot, but whenever I do either of those two things I am told that "Selected boot image could not authenticate" by the UEFI Secure Boot app I presume. Which is odd to me, since I am technically using the exact same windows image installed on the computer when it was manufactured, I have only changed the drive type, size, and removed a small msft formatted partition because I couldn't copy it.
My question is: How do I re-sign my Windows boot loaders and/or re-enable Secure Boot on my laptop and be able to boot into Windows 8?
Thank you for reading.