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How do I completely remove the Oracle 11g client from my computer? I am running Windows 7, 64-bit.

I have tried running deinstall.bat, but this doesn't work.

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4 Answers 4

up vote 12 down vote accepted

From Manual and Clean Uninstall Oracle for Windows :

  1. Uninstall all Oracle components using the Oracle Universal Installer (OUI).
  2. Delete the HKEY_LOCAL_MACHINE/SOFTWARE/ORACLE key which contains registry entries for all Oracle products by using regedit.
  3. 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.
  4. Reboot the workstation.
  5. Delete the ORACLE_BASE directory. (i.e C:\Oracle)
  6. Delete the C:\Program Files\Oracle directory.
  7. Empty the temp directory.
  8. Empty the recycle bin.
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That link no longer works... –  Richard Everett Sep 5 '13 at 14:56
1  
@RichardEv: I fixed the link, but it doesn't contain much more info than the above. –  harrymc Sep 5 '13 at 17:30
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  1. Remove any oracle entries in the PATH variable under Computer =>Properties => Advanced System Settings => Environment Variaiable => PATH
  2. In the same place remove the ORACLE_HOME entry
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Steps: Stop all Oracle services first.

  1. START -> RUN -> Services.msc
  2. Locate all Ora* services & click on STOP
  3. Start -> RUN -> Regedit
  4. Locate HKEY_LOCAL_MACHINE folder in the registry
  5. Open Software folder
  6. Delete the Oracle folder under Software
  7. Open System folder in HKEY_LOCAL_MACHINE
  8. Open CurrentControlSet folder within the System folder
  9. Open Services
  10. Delete all keys related to Oracle. Every key starts with “ORA..”
  11. Close the regedit
  12. Delete ORACLE_HOME folder
  13. Delete the Oracle folder in Program Files
  14. Reboot
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Use the Universal installer. If you try to uninstall everything at once it will not let you. So first uninstall the program. MAKE CERTAIN TO LEAVE THE UNIVERSAL INSTALLER OPEN. Then go back and uninstall the Home.

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