# How to uninstall Oracle 11G software that are installed in Windows 8?

How to uninstall Oracle 11g software that are installed in Windows 8? I have installed oracle 11g version in local machine.

Oracle has a tool called Deinstall that will remove an Oracle database as well as the Oracle software. Either GUI or command line. Check here on how to use it.

https://docs.oracle.com/database/122/HPCLI/oracle-deinstallation-tool-deinstall.htm

To uninstall Oracle database on Windows follow the following steps(Non-Grid Installation only).

1) Stop the Oracle services. Stopping Oracle Services

2) Remove the Oracle components using Oracle Universal Installer.

1. Ensure that you first follow the instructions in the "Stopping Oracle Services" section.

2. Start Oracle Universal Installer: From the Start menu, select Programs, then Oracle - HOME_NAME, then Oracle Installation Products, and then Universal Installer.

3. The Welcome window for Oracle Universal Installer appears.

5. The Inventory window appears.

6. Expand the tree of installed components until you find the components to remove.

For example, if you installed a database with the Enterprise Edition option and later installed additional components with the Custom option, expand the Oracle home component to display all the components installed in the Oracle home.

1. Select the components to remove.

2. Click Remove.

3. The Confirmation window appears.

In the Confirmation dialog box, click Yes to remove the selected components.

Note: A message may appear indicating that removing some components may cause other components to not function properly. After the components are removed from your computer, the Inventory window appears without the removed components.

10 Click Close to close the Inventory window.

1. Click Cancel to exit Oracle Universal Installer.

2. Click Yes to confirm that you want to exit.

3) Remove Oracle Keys from the Microsoft Registry Editor.

2. Make sure that you have stopped Oracle services.

3. From a command prompt, enter the following command:

SYSTEM_DRIVE:\> regedit

1. Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services and delete the OracleHOME_NAMETNSListener registry entry. Oracle Universal Installer automatically deletes all other Oracle Net services.

2. Exit the registry editor.