Answering my own post.
I thought I could just point out that this version will not always ask for reboot.
However some have taken it to mean you won't need to reboot.
I updated & no reboot requested.
I then noticed that although DVDFab recognised all my drives. It had shuffled their order about.
The s/w still worked though.
Having since rebooted, everything is as it should be.
So the lesson here is. Even if no reboot is requested, if having problems no matter how small. Reboot before taking any other steps.