On a Windows BigFix server you should change the Sql database password configuration using ODBC. From the CME prompt type “odbcad32”. You should see an entry related to bfenterprise.
If you wanted to change a Sql acounts password or the Sql sa password, i would recommend using Sql enterprise manager.
I’m pretty sure that in case of using SQL authentication, you also need to set a registry value on the BES server so the root server can authenticate to SQL. I’ll check on that when I’m back in the office Monday.