So thank you all. Yes indeed the correct solution to this specific problem is to contact support and they verify ownership requiring photograph with machine/tag/service number along with additional dated material. once connected to support, process took 30 minutes., grateful for the lessons, thank you
This MMF / micro MB doesn't appear to have jumper to reset password for BIOS;  currently BIOS has administrator password set, so i can't make changes to boot order i have removed CMOS battery and tried CNTRL+ESC keys,  how can i reset / clear? thanks
Optiplex 5000, unable to reset BIOS Password