LogShark can be removed by simply running the LogShark setup program. Temporary files, logs and workbooks generated by LogShark are left behind and must be manually deleted.
If you want to remove LogShark from your computer, run the LogShark Setup program (Setup\_LogShark\_v3.0.1.exe), and then click Uninstall from the LogShark Setup dialog box.
You can also go to the Control Panel, open the Uninstall or change a program dialog box, and then right-click LogShark and choose Uninstall.
If you want to remove PostgreSQL from your computer, go to the Control Panel, open the Uninstall or change a program dialog box, and then right-click your PostgreSQL program and choose Uninstall.
Delete the data folder from PostgreSQL installation directory (for example, C:\Program Files\PostgreSQL\9.5\data).