Primeiro, use Iniciar - > Executar - > Services.msc, localize todos os serviços Ora * e pare-os.
O resto, de Manual e Clean Uninstall Oracle for Windows :
- Uninstall all Oracle components using the Oracle Universal Installer (OUI).
- Delete the
HKEY_LOCAL_MACHINE/SOFTWARE/ORACLE
(andHKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ORACLE
on 64bit) key which contains registry entries for all Oracle products by using regedit.- Delete any references to Oracle services/components in the following registry location:
HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/
. Looks for key entries that starts with “Ora” which are obviously related to Oracle.- Reboot the workstation.
- Delete the ORACLE_BASE directory. (i.e C:\Oracle)
- Delete the directory
C:\Program Files\Oracle
.- Empty the temp directory.
- Empty the recycle bin.