[quote2ua]i got a new error message : the postgreSQL data directory must be on on an NTFS formatted volume.
if you wish to install the data directory on another type of partition ( wich is not recommanded, and is unsopported ) you must initialise the database cluster manually by running initdb.exe
[/quote2ua]
You have to convert that drive to NTFS...
archives/PT2/viewtopic.php?t=22833&highlight=ntfs+convertor if you have another drive that is already NTFS you can install PostgreSQL on that drive instead.