Welcome to this forum with your first post.
I have experienced that personally and it was driving me nuts

...however, this problem had a very easy solution for me, may be you should try that too..... BIOS in New computer don't have the floppy drive installed (You think it can't be that simple, right ?) yes, go to BIOS and enable the floppy drive and boot your system.
Let us know if that works for you
Cheers