I have installed Windows 10 Enterprise 1909 on several of my PCs. For my daily work, I am using an account which is not in the Administrators group. This means that I am running into UAC prompts quite often, which somehow is the goal of working that way.
So far, so good. But when working as a non-administrator, the UAC prompt not only asks you to click YES to permit the respective action, but you have to enter an administrator's password. If there are multiple administrative users on the system, this can lead to problems.
For example, the UAC prompt in my daily work account looks like that:
Here, we can see that there obviously is an administrative user Acronis Agent User on that system, which is not surprising because I have installed Acronis software there. However, I can't enter the password of this user, because I don't know it; that account has been created automatically during Acronis software installation and might be configured without a password at all.
Hence, to proceed, I have to click on the link More choices, which in turn leads to the following situation:
I want to use the Administrator password, because it is the only administrative password I know, so I have to click again on Administrator, which leads to the following situation:
Now I finally can enter the Administrator password and click YES.
This whole procedure is driving me mad now (after having tolerated it for several months). I hit that UAC prompt several times a day, and it takes several mouse clicks until I finally can enter the password. There is no chance to automate the procedure because the UAC prompt appears on a Secure Desktop, which I don't want to change.
Hence the question:
Is it possible to set a "default administrative user for UAC prompts" somewhere, or to order the list of administrative accounts which are offered in the UAC prompt? If I could make Administrator the first list item (instead of Acronis Agent User), the problem would be solved.
It seems that the list is sorted alphabetically, so I could eventually rename the Administrator account name to 000, for example. But I have never tried this and I am unsure whether or not it would be a stupid idea, so I would prefer to order that account list using another method; perhaps the order is somewhere in the registry or something like that.
Any ideas?



Administratorto something else (e.g.000) than create a new administrative account. But perhaps there are still chances that somebody provides a reasonable solution within the next days. I'll just wait some time and then decide about it (and eventually update my question). – Binarus Nov 10 '20 at 15:43