Hi @lburr - thanks for your excellent explanation. Unfortunately, I'm having the same issue...maybe years later, Intuit finally has a patch?
My scheduled backups stopped working on April 14th, followed by daily 12kb TMP files - my last successful scheduled backup was April 13th. It will backup to the attached USB hard drive without issue if run manually, but scheduled does not work. I did go into the Task Scheduler and followed the steps you used with success, although I had to select Windows 10 as that's what I'm running my QB Premier 2016 on. Unfortunately, I am still getting TMP files. All I see in Task Scheduler when I look at the Last Run Result column is (0x2).
Any other thoughts or ideas? Did your changes permanently fix your issue?
Thanks...
Jason
