How to completely uninstall PostgreSQL from Windows? This is the most effective method

Installing PostgreSQL

1. Download PostgreSQL

1. Download Link: Visit PostgreSQL Downloads to start the process.

2. Select Windows: On the download page, click on the “Windows” option.

   

3. Download the Installer: Click on “Download the installer” to get the setup file.

   

4. Choose the Version: Select the desired version of PostgreSQL to download.

   

2. Install PostgreSQL

1. Run the Installer: Right-click on the downloaded .exe file and select “Run as administrator” to start the installation. (Consider temporarily disabling antivirus software during installation.)

   

2. Click Next: Follow the setup wizard and click “Next” to proceed.

   

3. Select Components: Keep the default options selected and click “Next.”

   

4. Set Password: Enter and confirm a password for the PostgreSQL superuser. Ensure both entries match and click “Next.”

   

5. Default Port: The default port is 5432. No changes are needed here. Click “Next.”

   

6. Choose Locale: Select the default locale, usually “C,” and click “Next.”

   
   

7. Choose Installation Directory: Select the installation directory or accept the default and click “Next.”

   

8. Select Data Directory: Choose the directory where PostgreSQL will store its data files and click “Next.”

   

9. Begin Installation: Click “Next” to start the installation process.

   

10. Complete Installation: Once installation is finished, click “Finish” to exit the setup wizard.

Uninstalling PostgreSQL

1. Run the Uninstaller: Locate and run the PostgreSQL uninstaller program from the Control Panel or Start menu.

   

2. Select Uninstallation Options:

   • Remove Entire Application: Choose this option to delete the entire application and all installed files.
   • Remove Individual Components: Choose this option to remove specific components while keeping other installed parts.

   

   Click “Next” to proceed with the uninstallation.

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