During SMSMSE 7.0 installation (fresh or upgrade from previous version), the product fails during the installation of SMSMSE Transport Agents.
Windows Remote Powershell is disabled
Testing procedure to confirm the cause:
Step 1 - Open the Windows Powershell
Step 2 - Run the command "New-PsSession"
If an error is returned (rather than notification that a new powershell session has been invoked) then this error is confirmed and the next several steps are likely resolution of the issue.
Step 3 - Run the command "Enable-PsRemoting"
Confirm that this is successful and follow any prompts that appear.
Step 4 - Re-Try the command "New-PsSession"
Confirm that a new powershell session is returned as being successfully created
Step 5 - Complete the manual uninstall to resolve the error 1722 if present (http://www.symantec.com/docs/TECH200443)
Step 6 - Run the installer again.
Exchange 2010 (probably applicable with Exchange 2013)