Is it a preloaded account, or something that has been added at some stage? I've never noticed it before and am wondering how it got there and what it is for.1 person needs an answerI do too

PostgreSQL is database software and database-related programs may use it. Perhaps some database-related program you have installed uses it. These database programs often will add a user; QuickBooks does this for example. Only you know what programs you've installed.MS-MVP - Elephant Boy Computers - Don't Panic!