I have spent 2.5 days trying to resolve why & when, on the workstation, the popup "Log in as Quickbooks Desktop Administrator" appears instead of a User/Password prompt instead.
Your LOUSY Support refused to identify (OR JUST DOESN'T KNOW) WHY this message appears.
I finally figured it out, on my own. The Company File needs to have a User other than the default Admin set up. And then, even though the Administrator sets up the User with a password, the User must change that password upon signing in to said Company File.
This small business recently (January 2020) switched to QB from Sage and, if this kind of NON-SUPPORT continues, it may look for something more reliable, trustworthy, knowledgeable and helpful. IT support was kind enough to only bill $600 for 2.5 days of onsite support for a call to Intuit should have taken no more than 5 minutes. YOU ARE CRAPTASTIC, AND I'M BEING KIND.