Oracle UCM: DisableNtfs8dot3

If you have ever installed an instance of Oracle WebCenter Content on a Windows server you probably stepped into this error:


The weblayout directory is on a filesystem with 8dot3 semantics. Legacy 16-bit 8dot3 filenames conflict with revision labels and will cause file loss. Disable 8dot3 semantics by running "Installer DisableNtfs8dot3" and then restarting Windows.

This can be solved in two ways:

1)Using Oracle suggested procedure

This is done running Installer.exe with DisableNtfs8dot3 parameter.

To do this open command prompt (Start -> Run -> cmd) and go to:


<DomainHome>\ucm\cs\bin\Installer.exe DisableNtfs8dot3


In my server it was:


E:\Oracle\Middleware\user_projects\domains\ecm_domain\ucm\cs\bin\Installer.exe DisableNtfs8dot3


2)Editing a registry key

Open regedit (Start -> Run -> regedit) and go to:

HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control/FileSystem

Edit NtfsDisable8dot3NameCreation key and change its value to 1 (default value is 2).


After this restart UCM instance (if you edit registry also a server reboot would be necessary) and alert message will disappear.

That's all!!