Reinstall Oracle database installation plan public

For the installation of software is more important is the details, one step is wrong step by step, so the operation should be extra careful to pay attention to methods, such as reinstalling Oracle database is not like the first The installation is the same, and the installation plan of this tutorial will be introduced to you one by one. Many friends only use Oracle to delete, but in many cases, he will find that when reinstalling, the next installation interface disappears, and often he has no choice but to reinstall the system. In fact, your database is not deleted, and it is not cleaned. This will happen.

Implementation:

1. Start -> Settings -> Control Panel -> Administrative Tools -> Services Stop all Oracle services.

2, Start->Program->Oracle-OraHome81->Oracle Installation Products-> Universal Installer uninstalls all Oracle products, but Universal Installer itself cannot be deleted

Run regedit, select HKEY_LOCAL_MACHINE/SOFTWARE/ORACLE, press the del key to delete this entry.

4. Run regedit, select HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services, scroll through the list, and delete all Oracle entries.

5. Run refedit, HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Eventlog/Application, and delete all Oracle entries.

6, Start -> Settings -> Control Panel -> System -> Advanced -> Environment Variable Delete Environment Variables CLASSPATH and PATH for Oracle Settings

7 From the desktop, STARTUP (startup) group, program menu, delete all the groups and icons about Oracle

8, delete /Program Files /Oracle directory

9, restart the computer, After restarting, you can completely delete the directory where Oracle is located.

10. Delete the files related to Oracle and select the default directory C:/Oracle where Oracle is located. Oracle deletes this entry directory and all subdirectories, and from C: Delete the following files ORACLE.INI, oradim73.INI, oradim80.INI, oraodbc.ini, etc. under /WINDOWS.

11. If there is a [ORACLE] tag segment in the WIN.INI file, delete the segment

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

13, to the event viewer, Oracle delete the relevant log description: If there are individual DLL files can not be deleted, then ignore it, restart, start a new installation, install a new directory, then install Once you have finished and restarted, the old directories and files can be deleted.

There are a lot of steps to install, but everyone still has to be patient. After installing the database, the details can't be ignored. Let's go back and try it. I hope it will help everyone.