How to permanently delete Oracle under NT

Software environment:

1. Windows 2000 + ORACLE 8.1.7
2. ORACLE installation path: C: \ ORACLE

Implementation Method:

1. Choose "start"> "Settings"> "Control Panel"> "Administrative Tools"> "services" to stop all Oracle services. 2. Start-> Program-> Oracle-OraHome81-> Oracle Installation Products-> Universal Installer uninstalls all Oracle Products, but the Universal Installer itself cannot be deleted. 5. Run regedit, select HKEY_LOCAL_MACHINE \ SOFTWARE \ ORACLE and press del to Delete this entry. 6. Run regedit and select HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services. Scroll through the list and delete all Oracle entries. 7. Run refedit, HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ Eventlog \ Application to delete all Oracle entries. 8. Choose "start"> "Settings"> "Control Panel"> "system"> "advanced"> "environment variable" to delete the Oracle settings in the environment variables "CLASSPATH" and "PATH". 9. Start from the desktop and "STARTUP) in the group and Program menu, delete all Oracle-related groups and icons 10, delete \ Program Files \ Oracle directory 11, and restart the computer, after restarting, you can delete the Oracle directory 12 and Oracle-related files. Select the default Oracle directory C: \ Oracle and delete the portal directory and all subdirectories, and delete the following file from the Windows 2000 directory C: \ WINNT. INI, oradim73.INI, oradim80.INI, oraodbc. ini and so on. 13. WIN. if the INI file contains a [ORACLE] Tag segment, delete the segment 14. If necessary, delete all Oracle-related ODBC DSN15 and the event viewer to delete Oracle-related log descriptions: if some DLL files cannot be deleted, restart and start a new installation. select a new directory during installation, old directories and files can be deleted.