Software Environment:
1. Windows 2000+oracle 8.1.7
2, the ORACLE installation path is: C:\ORACLE
Implementation method:
1, Start-> Settings-> Control Panel-> Management Tools-> Services
Stop all Oracle Services.
2, Start-> Program->oracle-orahome81->oracle installation products->
Universal Installer
Uninstall all Oracle products, but universal installer itself cannot be deleted
5, run regedit, select Hkey_local_machine\software\oracle, press del key to delete this entry.
6, run regedit, select HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services, scroll this list, delete all Oracle portals.
7, the operation of RefEdit,
Hkey_local_machine\system\currentcontrolset\services\eventlog\application,
Deletes all Oracle portals.
8, Start-> Set-> Control Panel-> System-> Advanced-> Environment variables
Delete environment variables classpath and path-related settings for Oracle
9, from the desktop, startup (startup) Group, program menu, delete all the Oracle-related groups and icons
10, delete \program Files\oracle Directory
11. Restart the computer to completely remove Oracle's directory after reboot
12. 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.
13, WIN. INI file, delete the segment if there is a tag segment in the [ORACLE]
14, if necessary, delete all Oracle-related ODBC DSN 15, go to Event Viewer, delete Oracle-related logs
Description
If there are individual DLL files can not be deleted, do not bother, reboot, start a new installation, install, select a new directory, then, after installation and restart, the old directory and files can be deleted