The installation or migration to the Symantec Endpoint Protection Manager's Default SQL Server Express database has failed or encountered an error that you need to troubleshoot.
Starting with 14.3 RU1 the default database used in a SEPM installation is SQL Server Express instead of the embedded Sybase database.
Common error messages:
"The SQL Server Express database installation failed. Unknown SQL Server Express installation error!"
14.3 RU1 or later.
SQL Server Express version.
Review the following logs to investigate why the SEPM's Default SQL Server Express database did not install correctly.
If the issue is encountered during the Management Server Configuration Wizard portion of the install, review the following logs.
If the issue is encountered during the Default SQL Server Server Express installation: first check for and uninstall any existing SQL Server 2012 Native Client. If a newer client is already installed, SQL Express will throw the "Unknown SQL Server Express installation error" when it tries to install an older version of the client and it is not at all obvious from the logging that this is the cause. Otherwise check for the presence of the following file(s).
To review the Summary.txt, open it and scroll to the bottom of the file. There should be a line similar to
Rules report file: C:\Program Files\Microsoft SQL Server\<version>\Setup Bootstrap\Log\<date>_<time>\SystemConfigurationCheck_Report.htm
Open the SystemConfigurationCheck_Report.htm and review for exceptions and error messages.
Follow recommendations within the SQL Server Express logs to resolve any installation issues.
After remediation steps have been taken, run one of the following.