Rebooted a server to look into some config settings.
Saw what I wanted and didn't make any changes.
Let the system reboot...and now it won't boot into Windows.
It goes through BIOS, and starts trying PXE boot instead of the internal C drive.
It fails, and then when I select the C drive, it goes right back into PXE boot.
The drives are configured as two virtual disks on a RAID controller.
I went into the configuration utility.
The virtual disks and associated physical disks are there. They are showing online.
What else can I check?