Norton Utilties 16 Disk Doctor Problem on Win 10

On windows 10

After running Norton Disk Doctor (Disk repair) from Norton utilites 16. The computer reboots like it's suppose to. Then I get the message.

Wait for device Ready

Norton Disk Doctor

Jobmanagerlasterror: cjobmanager:: checkout error!

Cannot load job group batch!

File name:

Cannot load norton disk doctor tasks queue XML file!

It's possible it was corrupted

Trying to repair it...

Press any key to continus...

Then Windows start up in repair mode, when finished reboots and the show starts all over again!!

Boot
Disk Doctor error as described.
Windows repair.
boot
etc. etc.

Starting a dos prompt I get a X drive containing windows system files and what used to be C drive is now D.

I have searched this forum and tried some of the suggestions but no luck yet :-(