I tried to use the HDDguru LLF tool to format a USB 150GB drive that I had and it was taking WAY toooo long (4gb completed after 12 hours at a rate of 0.5mb/s). So I cancel and just use the Quick format option. I think after it was reformatted that it (usb drv) may have accidentally been set as "Active" drive. With my Win7 OS installed on the C drv.
Everytime I try to boot now I get a Boot Manager error enter Cntrl-Alt-Del to restart.

I can get into my system and see all data there when I boot with the Win 7 DVD in dvd drv (even without hitting a key to boot from DVD / with portable USB drive unplugged)

When I tried to enter into system recovery it says "no system partition".
I have right clicked on the C drive in disk Manager and click on "set as active" yet when I reboot it still gie me the boot manager error message and then when I do get system booted with dvd in drive and go back to disk manager the C drv is NOT marked as active.
What can I do to get my system to boot properly without the WIN7 DVD in drive and WITH the external USB drive plugged in?

Sure appreciate any help on this