I appreciate this information being posted here. I was able to change my "Configure for" and get mine working. The retention works for me too. I ran the task several times until it deleted the oldest copy.
For those of you who are getting errors with the username/password, you'll need to make sure you're using the same user and password you log into your computer with. if you're on a domain, you'll need to add the NetBIOS domain name in this format: domain\username. If you're on a domain and don't know the domain name, you probably have an IT Support guy you can ask.
Checking the box to "Do not store password" will only work if you leave the computer logged on all of the time.
@potomacpc, I believe the core of the issue, and the reason QB developer team has not fixed it yet, is that when creating scheduled tasks programmatically, the "
schtasks.exe" program does not have any command line options for "Configure for". This is in fact an OS problem - the OS does not give them the API they need to change that field, so it gets the default which in this case does not work.
Even so, I would think that they could pop up a warning dialog with instructions to fix it when someone opens the scheduled backup configuration screen in QB.
I've been an IT support guy for 20 years, and large companies shoving difficult issues under the rug repeatedly in favor of more sexy product feature updates is nothing new to me.
