We should do a distinction,
if you installed on MySQL database or using the embedded DB HSQL
In the first case you should delete your old logicaldoc schema and recreate a new empty logicaldoc schema.
First:
shutdown LogicalDOC service / Tomcat.
### Only if you installed with MySQL
### Delete and recreate the DB schema
DROP DATABASE logicaldoc;
CREATE DATABASE logicaldoc;
### Common part to both installations
You can then delete the working folder (Repository Folder) and all its content (to save space).
Restart the LogicalDOC service / Tomcat
To this point you can start a new installation using the setup procedure
LogicalDOC Community:
http://localhost:8080/logicaldoc/setup
LogicalDOC Business/Enterprise:
http://localhost:8080/setup
Note: use admin/admin as creadentials to authenticate for the setup