Thank you for the idea, I will try that.
I'm surprised that this scenario does not seem to be common in your view. I seem to have that need all the time, particularly when a certain hard drive would not boot anymore.
Usually I would then boot from a parallel system and try to fix the defective drive from there.
I would expect that writing a new master boot record to another drive would be even more common than writing it to the current boot drive, because if the current drive's MBR is broken, you can't even boot from it -- let alone start EasyBCD to write a new MBR to it, can you?