Default location for OST files

By default, OST and PST files are located in: %userprofile%\Local Settings\Application Data\Microsoft\Outlook. The setting "Default location for PST and OST files" can specify a new location for both PST and OST files. You can use this setting to specify a different folder location for OST files. This setting overrides both the default location and the "Default location for PST files" location to specify a location for OST files.

Supported on: At least Windows Vista

Default location for OST files

Registry PathSoftware\Policies\Microsoft\Office\12.0\Outlook
Value NameForceOSTPath
Default Value


Administrative Templates (Computers)

Administrative Templates (Users)