Oracle Series: (2) Uninstall

How can you completely uninstall Oracle with an Oracle-brought uninstaller that does not fundamentally offload Oracle, leaving a hidden danger for the next installation?

That is the direct registry cleanup, the steps are as follows:

1, start-up settings, Control Panel, management tools, services

Stop all Oracle Services.

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2. Start-Up Program->oracle-oradb11g_home1->oracle installation Products--Universal Installer

Uninstall all Oracle products, but universal installer itself cannot be removed [if the second step fails, skip to step three, most of the second step is failed]

3. Run regedit, select Hkey_local_machine\software\oracle, and press Del to delete this entry.

4. Run regedit to delete all of the Oracle portals in these three locations below.

Hkey_local_machine\system\controlset001\services\ "Down" all Oracle Delete

Hkey_local_machine\system\controlset002\services\ "Down" all Oracle Delete

Hkey_local_machine\system\currentcontrolset\services\ "Down" all Oracle Delete

5. Run regedit,

Hkey_local_machine\system\currentcontrolset\services\eventlog\application\ "Down" All Oracle deletes,

Delete all Oracle portals.

6, start-to-set, control Panel, System--Advanced environment variables

Delete environment variables classpath and path for Oracle settings

7. Remove all Oracle-related groups and icons from the desktop, Startup group, program menu

8. Remove the installation directory (ex: D:/SOFTWARE/ORACLEDB)

9. Restart the computer to completely remove the Oracle directory

10, delete the files related to Oracle, select the default directory where Oracle is located C:\Oracle, delete this entry directory and all subdirectories, and remove the Oralce files from the WINDOWS directory (typically C:\WINDOWS), and so on.

11, enter "Win.ini" in the Run box, carriage return. WIN. INI file if there is a [ORACLE] tag segment, delete the segment

12. "If necessary", delete all Oracle-related ODBC DSN

13. To the Event Viewer, delete the Oracle-related logs

Description

If there are cases where individual DLL files cannot be deleted, do not bother, restart, start a new installation,

When installing, select a new directory, then, after installation and restart, the old directory and files can be deleted

Oracle Series: (2) Uninstall