ManipUni said:

Ouch. That is a flawed design - if you cannot even change your product key nor re-activate it...

 

Did you try safe mode? Same thing?

Yup. Safe mode. Same thing. I'm going to call it the light blue screen of death   Smiley

 

Having re-installed Windows 7 Ultimate x86, I now have a phantom 5 1/4" B: floppy drive. The A: floppy drive works.

 

The B: floppy drive does not show up in the BIOS but does show up in "fsutil".

fsutil shows the B: floppy drive as 5 1/4", which would be great, cos I need one for an IBM PC 5150 (Original PC) that i'm fixing.  Smiley

In "Computer" the B: icon even shows a 5 1/4" floppy disk!

 

What intrigues me is that Windows 7 has the 5 1/4" floppy icon!