New
#51
OK, i didn't re-read the whole thread.
If i understand your last post, it sounds like my previous suggestion 1 and 2 won't help.
That leaves trying a BIOS reset which can be risky.
Wait for others to give opinions and suggestions.
Before you do a reset you should post a screen print of Disk Management using this tutorial by Golden:
Disk Management - Post a Screen Capture Image
At least that will show if you are using UEFI or Legacy BIOS.