How to uninstall PostgreSQL in Windows?

Wanna uninstall PostgreSQL?

Well, lots of users suffered an error message, saying “An error has occurred: Error connecting to the server: FATAL: password authentication failed for user ‘postgres'”. And if you just do not know how to reset your pgAdmin system or fix other potential program problems, you should take the following steps to cleanly uninstall PostgreSQL from your Windows or from your server machine. Moreover, if you cannot complete the manual removal option, please download, install and run the smart uninstaller program below to fully remove PostgreSQL and re-install it or its newer editions of it at a later date if you need.

How did you perform the install of PostgreSQL?

  1. Please check those optional items, keep what you need, or rid those potentially unwanted ones.
  2. Uninstall PostgresSQL - 0

    Note Stack Builder will install the following Add-ons, tools and utilities: the EnterpriseDB pgPhoneHome for Apple iPhone v1.1-2, pg Agent v3.2.1-1, pgBouncer v1.5.1. Thus please check your machine/server out to fully get rid of PostgreSQL.

    Uninstall PostgresSQL - 1

    Note In the "Registration-required and trial products", you will see the EnterpriseDB Solution Pack and EnterpriseDB Tuning Wizard for PostreSQL v1.4-1 will be required to be installed – uninstall and remove them to cleanly uninstall the PostgreSQL!

    Note For Web Applications: Drupal 6 v6.19-1, Drupal 7 v7.12-1, mediaWiki v1.17.3-1 and phpBB v3.0.10-1. And for Web Development, this item includes Apache/PHP v2.2.22-5.3.10-1, phpPgAdmin v5.0.4-1 and WaveMaker v6.3.2GA – find and remove these items to fully remove PostgreSQL.

How to Completely Uninstall PostgreSQL?

  1. Simply, to properly and automatically uninstall PostgreSQL, you can start doing this task by clicking the Start/Home menu, you then click Control Panel; click Programs and Uninstall a program or Add or Remove Programs.
  2. To automatically remove or uninstall PostgreSQL 9.1 that’s running on your machine, you highlight the unwanted PostgreSQL (III) from the “Currently Installed Programs” list, double click it by using an administrative account or other superuser created on your Windows/server system. You may need to wait for seconds for the following Question window appears and then you can go to uninstall PostgreSQL. See the software information below:
    • Publisher: PostgreSQL Global Development Group

  3. Then you click Yes button on Question info box below to continue to uninstall PostgreSQL via its default install option, “Do you want to uninstall PostgreSQL …”; and then you need to be very patient while the Setup performs the requested operation to automatically uninstall PostgreSQL.
  4. While you try to uninstall PostgreSQL automatically, you may encounter the Warning window ("The data directory … and service user account (postgres) have not been removed.") and you can click OK to ignore it -you can open up the following file folder to manually delete the file remains to manually uninstall PostgreSQL and its remains.
  5. Click OK on Info window, “Uninstallation completed”.
  6. Click Yes on Question window, “To complete the uninstallation, … Would you like to restart now?” – You should exactly follow it to successfully uninstall PostgreSQL.
  7. You may find that the following shortcut file pgAdmin for psql that get left in Desktop, you just need to right click on it and run Delete command on the menu to completely uninstall PostgreSQL.
  8. Select Yes option from Delete Shortcut, informing “Are you sure you want to move this shortcut to the Recycle Bin?…"
  9. Open up Start menu below, locate and right-click on the remaining PostgreSQL 9.1 entry left in Programs list, peform the provided Delete on the menu to fully uninstall PostgreSQL and then you click Yes on Delete Folder, “Are you sure you want to move this folder to the Recycle Bin?”. Then please remember to remove it in Windows Recycle Bin to totally uninstall PostgreSQL.
  10. Select Control Panel > click Uninstall a program/Add or Remove Programs. You now remove the possibly useless "MS Visual C++ 2008" to completely uninstall PostgreSQL from your system. The whole un-install of C++ should be easy and quick. If your Windows do not let you remove it, then you switch to the following force uninstall option.
  11. Wait till the Windows Installer completes the uninstallation of C++ 2008. Then you can manually detect and clean the following leftover files by the uninstalled programs above, and if you’re new to your system, I do NOT recommend that you manually delete the registry values related with PostgreSQL. Instead, it’s highly recommended downloading the professional & perfect uninstall tool to effectively remove them so that you can safely uninstall PostgreSQL. Watch or review the video demonstration for more useful tips to uninstall PostgreSQL without any unexpected system error(s).
    • HKEY_CLASSES_ROOT\Applications\pgAdmin3.exe
    • HKEY_CURRENT_USER\Software\Classes\Applications\pgAdmin3.exe
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\ShellNoRoam\MUICache, C:\Program Files\PSQL\9.1\bin\pgAdmin3.exe – pgAdmin III
    • HKEY_CURRENT_USER\Software\pgAdmin III, EnterpriseDBHelpPath – http://www.enterprisedb.com/docs/en/current/server/, EnterpriseDBPath, GreenplumDBHelpPath – http://www.greenplum.com/docs/3300/, GreenplumDBPath
    • HKEY_USERS\S-1-5-21-1268191406-2149036373-4007080809-1000\Software\Classes\Applications\pgAdmin3.exe
  12. Now, please open Windows Recycle Bin, launch the Empty the Recycle Bin option for the psql files leftovers to cleanly uninstall PostgreSQL: click Yes on Delete Multiple Items.
  13. Save and reboot your device then.

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ALSO AROUND THE INTERNET: RELATED WEB SITES

pgAdmin: PostgreSQL administration and management tools
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MediaWiki – Welcome to MediaWiki.org
phpBB – From Wikipedia, the free encyclopedia
Uninstalling PostgreSQL Seapine Software Knowledgebase
Uninstall Postgresql – LinuxQuestions.org

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