Error Message

The lines below can be seen in the Enterprise Vault Installation logs:

Machine policy value 'DisableBrowse' is 1

Adding new sources is not allowed.

Warning: rejected attempt to add new source

MainEngineThread is returning 1625

No System Restore sequence number for this installation.
This installation is forbidden by system policy. Contact your system administrator.

This error occurs if the Windows Installer Policy setting "Remove browse dialog box for new source" is enabled.

This policy prevents users from searching for installation files when they add features or components to an installed program. 

Either of the 2 Steps mentioned below can be referred to for resolving this issue.

Solution 1

This policy can be disabled from Group Policy Editor and can be re-enabled after the installation completes:

a.Launch the windows menu, Click on Start->run, type gpedit.msc.

b.Under Local Computer Policy, Navigate to the following hive.

Computer Configuration
Administrative Templates
Windows Components
Windows Installer
Remove browse dialog box for new source.->Modify it to "Disabled" or "Not Configured"
 

Solution 2

a.Alternatively, the below registry key can be modified on the affected EV server:

HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Installer ->Modify "DisableBrowse = 0"

Warning: Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.