"...such projects account for up to a quarter of GitLab's hosting costs, and that the auto-deletion of projects could save the cloudy coding collaboration service up to $1 million a year."
Beats me. Disk 0 has volumes 0-2. HarddiskVolume is 1-based?
Got it working, again, after assigning my favored volume a label (F:), then run "bcdboot F:\Windows", then reboot (twice; first went to shutdown).
"bcdedit /enum" now looking very different: