After the installation wizard has finished, you need to run the configuration wizard.
If you are installing in a Server Farm you must configure the Enterprise Vault components on all front-end Web servers. You do not need to run the configuration on the SharePoint Central Administration server.
The SharePoint configuration wizard asks for details of the Vault Service account and configures the Enterprise Vault Admin service to log on using this account.
To configure Enterprise Vault components on the SharePoint Server
Click Start > Programs > Enterprise Vault > SharePoint Configuration to start the configuration wizard.
You are prompted for details of the account that Enterprise Vault services will use. Enter the details of the Vault Service account.
You must use the format domain_name\username when you specify the account. Alternatively, use the Browse button to browse for the account.
On the last screen of the configuration wizard click Finish to exit the program.