Suddenly my backup software (Karen's Replicator which I have been using for more than 10 years now) refuses to back up any file which does not already exist on the destination drive.

Any files created since the last time I ran backups are not replicated, giving an error message in the backup log:

"Error: Could Not Open Destination File (Error 3 - The system cannot find the path specified.): E:\Disk1\Users\All Users\Ahead\Nero BackItUp\Cache\NBService.log"

As you can imagine, this compromises somewhat the efficacy of my backups.

I find it suspicious that this behavior began the first time I ran backups after the installation of the latest Windows 10 update, the "Creators" update.

Ideas?

tanstaafl.