At the end of the installation of Sophos Enterprise Console 5.x installer you see the following error:
Sophos Enterprise Console [5.x] Installation Failed
Unable to install Management Server
The MSI terminated unexpectedly.
First seen in
Enterprise Console 5.0.0
Various issues may be attributed to this high level error message.
What To Do
A number of known issues for the high-level error above are listed below, in order to determine if any of the following are related to your installation failure check the MSI log file 'Sophos_Server[32|64]msi [timestamp].log' - information on the log files created can be found in article 114627.
If none of the above articles are relevant to your issue please see the parent article 114627 for initial guidance.