Problems with reinstall Azure AD Connect

We had an Azure AD connect running on a server 2022. This got corrupted by a dll file. Now we want to redo the installation after manually uninstalling the software, but we cannot get any further when creating the synchronization account. The error message is: Unable to create the Azure Active Directory synchronization service account. You may be able to resolve the issue by performing the operation again.

If I do this, it still does not resolve after 4 times. If I close the installer (I had that last time) I can never get into it again. In other words, I am now at a fixed point.

Any idea how I can solve this?

Kind regards, Gert