How to remove Oracle completely

A lot of friends only use the Oracle deletion, but in many cases, he will find the reinstall, point to the next installation of the interface disappeared, often reluctantly had to reload the system, in fact, only your database did not delete clean, delete clean will not appear this situation.

Implementation method:

1. Start-> setup-> Control Panel-> admin Tools-> Service Stop all Oracle services.

2, start-> program->oracle-orahome81->oracle installation products->universal Installer uninstall all Oracle products, but Universal The installer itself cannot be deleted.

3, run regedit, select Hkey_local_machinesoftwareoracle, press del key to delete this entry.

4, run regedit, select Hkey_local_machinesystemcurrentcontrolsetservices, rolling

This list to remove all Oracle portals.

5, run refedit,hkey_local_machinesystemcurrentcontrolsetserviceseventlogapplication, delete all Oracle portals.

6, Start-> Settings-> Control Panel-> System-> advanced-> environment variables, delete environment variables classpath and path of Oracle settings.

7, from the desktop, startup (startup) Group, program menu, delete all the Oracle-related groups and icons.

8, delete the program Filesoracle directory.

9. Restart the computer to completely remove Oracle's directory after reboot.

10. Delete Oracle-related files, select the default directory c:oracle for Oracle, delete this entry directory and all subdirectories, and delete the following files from the Windows 2000 directory (typically C:winnt) Oracle.ini, Oradim73 . INI, Oradim80. INI, Oraodbc.ini and so on.

11, WIN. INI file, delete the segment if you have a tag segment for ORACLE.

12. Delete all Oracle-related ODBC DSN if necessary.

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

Description

If an individual DLL file cannot be deleted, do not bother, reboot, and start a new installation. When installing, select a new directory, then, after installation and restart, the old directory and files can be deleted.