JustinTime, on 04 January 2013 - 04:46, said:
Just got my new Dell, it had Windows 8 Home 64-bit on it and tons of bloat/spamware. Some stuff you can't uninstall, including some mandatory apps. So I decided to do a clean install with my Windows 8 Pro disc. However I got "The product key entered does not match any of the Windows images available for installation. Enter a different product key." I found that has to do with Dell embedding the product key that came with it in BIOS, so a workaround is to install Vista or 7, which I did and then upgrade to 8 pro. Worked fine but now whenever I turn PC on, it says something like no boot device is found, SATA 0: Installed, SATA 1: Installed. So I changed boot mode in BIOS to Legacy from UIFE (I forgot the name) and it loads Windows 8 fine. However why can't I use UIFE with secure boot anymore and how do I restore that?
Thanks for any help, I appreciate it.
Probably has something to do with the certificate used to make the UEFI SecureBoot work. Your Dell machine likely only has the certificate to make an Dell-specific copy of Windows work with secureboot, so really the only way to make it work again given that constraint is reinstall your OEM Window copy from the recovery disks (if you got them).
Unless I'm completely misunderstanding how SecureBoot works.