Gee, let me hep from 19, because I don't deserve that comment.
4. Intuit has a 3-year lifecycle for QB and has had this for nearly 20 years. So, QB 2012 was never meant to run on W10 in any environment, real or simulated. And your data file is 7 years behind current for purposes of any integrated import, including TT.
6. No, you never had to sign in for that. If you bought QB 2019 under the Plus Subscription, it is included for your additional fee.
9. First mistake: not confirming your own system and settings are working, because we now know your system has some Authorization conflicts, which is why you get that -6XXX error.
11. The program works with the .qbw file, not updating a QBB which is a compressed backup file. However, I have seen filenames where the ".qbb" got left in the string.
13 and 14. Putting files Local to the program, works best. Keeping backups on a cloud storage is nice, for when your entire office burns down, of course. I have come to work and the office was surrounded by firetrucks with the roof smoking.
17. I have Mac user clients running QB PC on their Macs using VM Ware and Parallels. It's harder to help with systems we don't know, over the internet, and especially Linux/Ubuntu is not really supported for QB desktop; it has an installable hosting app for being a file server for QB.
20. Yes, that is the First Thing I told you. But not until you finally revealed your computer system environment.
21. Glad to Help.
I sure hope others learn from you. Not just your saga, and your Conspiracy theories, but the Actual Help you posted on this peer user forum just might help the next peer user. And there never is any reason to be Rude to anyone trying to be helpful.
