The following articles mainly introduce the specific methods for re-installation after Oracle is deleted. In actual operations, the specific methods for re-installation after Oracle is deleted can not be ignored, the following articles describe related content. Forget that you will get something.
Many of my friends only use Oracle to delete the file, but in many cases, they will find that the next installation page disappears when the file is re-installed, and they often have to reinstall the system, in fact, this is not the case if your database is not deleted.
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 cannot be deleted.
3. Run regedit, select HKEY_LOCAL_MACHINE \ SOFTWARE \ ORACLE, and press del to delete the entry.
4. Run regedit and 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 to delete all Oracle entries.
6. Choose "start"> "Settings"> "Control Panel"> "system"> "advanced"> "environment variable" to delete Oracle settings in the environment variables CLASSPATH and PATH.
7. Start from the desktop and STARTUP) group and program menu, delete all groups and icons related to Oracle
8. Delete \ Program Files \ Oracle directory
9. restart the computer to completely delete the Oracle directory.
10. Delete Oracle-related files, select the default Oracle directory C: \ Oracle, and delete the entry directory and all subdirectories from C: \ Delete the following file in WINDOWS: ORACLE. INI, oradim73.INI, oradim80.INI, oraodbc. ini and so on.
11. If the [ORACLE] Tag segment exists in the WIN. ini file, delete it.
12. If necessary, delete all Oracle-related ODBC DSN
13. Oracle deletion logs in Event Viewer: if some DLL files cannot be deleted, You can restart and start a new installation, select a new directory. After installation and restart, the old directory and files can be deleted.