Frustrated that this backup feature does not work...and it looks like this has been going on for years!

After many hours of reading and trying different solutions to make this work...finally got it working thanks to ivorytux.   I did NOT change anything else in the task window:

I'm using Quickbooks Pro (Canadian), latest versions of both QB and Win10 Pro, and I'm using MS OneDrive.  Tried to set up a scheduled backup to my OneDrive so that my QB would be backed up to the cloud automatically.  I created the QB backup task and changed the default task in the scheduler to "Run only when user is logged on".  I did NOT change anything else in the taks window: