Should I use a Domain User account to manage SQL Server (or other services)
What's the worst case scenario if e.g. malicious software, running as you, gets concomitant access to the database in question?
The answer to that should probably dictate what you need to do.  Note that if you want to use another domain user for administration, you can run SSMS as another user by shift-right-clicking the shortcut (as opposed to a normal right-click).  There's also a Windows 10 system setting, &quot;show 'run as different user' in start&quot; (under developer settings).