This can happen when the value you set for the SQL connection in the Vault install does not match what is set within SQL. For example, this error will occur if your SQL authentication model is set to Windows only, and when you run the Vault install you try make the database connection using the 'sa' password. There are two ways to solve this.
1. Change the connection model in the Vault installer.
2. Change the authentication model with SQL. From within Enterprise manager, right click the "local" icon, choose Properties,
and go to the Security Tab. For MSDE, follow the instructions below.
<a href="http://support.microsoft.com/default.as ... 285097.</a>
FAQ: Install Error: not associated with a trusted connection
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