I’ve installed PostgreSQL 8.3.5 on Windows XP Home (SP3).

Now I’ve had time to play around with it, I want to delete my test
databases and all related physical files and go back to the beginning
with a fresh install.

Is there a nice way to re-initialize the entire installation, or do I
have to completely uninstall and re-install PostgreSQL?

gargoyle47, 24.04.2009 12:16:
Stop the service
Delete the entire data directory
Run initdb to initialize a new data directory (pointing to the old directory)
Start the service