Failure to Install after Uninstalling Previous Versions

The failure could happen when the previous version is not properly removed. Follow the steps below to remove the previous version.

1. Backup the STDM database located in PostgreSQL server. If you fail to back up your database, do not uninstall the PostgreSQL.
2. Go to Start Menu or Start Screen and type programs and features. Launch Programs and Features tool and uninstall the following;

• PostgreSQL 9.4 or older versions – if you have backed up your database or do not need your existing database.
• QGIS Wien (2.8.3) for STDM or older versions
• PostGIS 2.1.7 or older versions – if you have backed up your database or if you do not need your existing database.

2. After the above software packages are uninstalled, go to C:/Program Files and delete the following directories in case they still exist.

• QGIS Wien (2.8.3) for STDM
• PostgreSQL – if you have backed up your database or do not need your existing database and uninstalled PostgreSQL

3.  If you have backed up your database or do not need your existing database and uninstalled PostgreSQL, remove the postgres user.

To remove the postgres user, go to Start Menu or Start Screen and type cmd, on Command Prompt. Right click on it and Run as Administrator.

On the command prompt window type the command below and press the Enter key on your keyboard.

net user postgres /delete