On 10/29/2016 06:30 AM, Patrick Burroughs (Celti) wrote:
I suggest you double-check the partitioning and possible presence of an EFI system partition on that Windows drive from within your Arch install. If both msinfo and the partitioning confirm it's not UEFI, then I suggest you a) make sure the firmware is up-to-date, and b) comb through the firmware settings and make sure that it's fully in Legacy/BIOS mode and not Hybrid UEFI/BIOS mode; the latter is the cause of most such problems, in my experience.
Thank you. I cannot stand the limited bios that HP uses, it is an early attempt at a graphical bios that is slow as Christmas to navigate. I've been through every setting in the bios and there isn't any other setting that would explain the issue. (I have confirmed the bios is the latest 2015 release by HP)
It appears both the bcdedit /enum and msinfo32 tests confirm it is using Legacy boot. Checking msinfo32 reports
BIOS Mode Legacy
So I guess that leaves me with Ralfs solution of find the "Clear the CMOS" jumper, clear the bios, replace the battery (I hope it is a standard 2032 or its a trip to the battery store...)
I've never had another bios, in the probable 30 boxes I've had since '89 that wouldn't just find the drive. Even the old RLL/MFM drives would come right up. God, I hope this isn't a new problem generic with swapping SSD/Platter drives...