Fully uninstall Oracle 11g database under "Oracle" Windows 7

Nothing to do, want to re-install Oracle 11g, recorded as follows:

(1) First stop all Oracle services in the service;

(2) Start, oracle-oradb11g_home1, Oracle installation products, Universal Installer, click "Uninstall Product"-"Expand All" After selecting all the directories except "oradb11g_home1", delete them;

(3) Delete the registry:

Hkey_local_machine\software\oracle;

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services, scroll through this list and delete all the beginning with Oracle or Oraweb;

Hkey_local_machine\system\currentcontrolset\services\eventlog\application, remove Oracle;

HKEY_CLASSES_ROOT, remove all prefixes with Ora, Oracle, ORCL, or Enumora;

Hkey_current_user\software\microsoft\windows\currentversion\explorer\menuorder\start Menu\Programs, Remove all keys that start with Oracle;

Hkey_local_machine\software\odbc\odbcinst. INI to remove all keys that contain oracle except Microsoft ODBC for Oracle;

Some of these registry keys may have been removed while uninstalling Oracle products;

(4) Review the environment variables and delete the settings for Oracle in Classpath and path;


(5) Delete:

A. Delete all Oracle-related icons on the desktop and on the program menu;
B. C:\Program Files\oracle Catalogue;
C. C:\WINDOWS\system32\config\systemprofile\Oracle Directory
D. C:\Users\Administrator\Oracle or C:\Documents and settings\administrator\oracle directories;
E. C:\windows delete the following files: Oracle.ini, Oradim73. INI, Oradim80. INI, Oraodbc.ini, etc.;
F. If there is a [ORACLE] tag segment in the Win.ini file under C:\WINDOWS, delete the paragraph;

To this, completely uninstall Oracle, restart the computer, installation will be ready!

http://blog.csdn.net/jiangnan2014/article/details/17305865