How Do I Completely Remove Oracle 11g? - Super User

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Learn more about Teams How do I completely remove Oracle 11g? Ask Question Asked 13 years, 9 months ago Modified 5 years, 10 months ago Viewed 284k times 26

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.

• windows-7
• uninstall
• oracle-11g

Share Improve this question Follow edited May 14, 2018 at 8:53 Burgi 6,6781414 gold badges4141 silver badges5252 bronze badges asked Mar 12, 2011 at 19:10 GoldGold 2,0081212 gold badges3434 silver badges4545 bronze badges 2

• 1 related: stackoverflow.com/questions/8450726/… – matt wilkie Commented Sep 28, 2016 at 17:47
• Try to delete folder %TEMP%\CVU*%USERNAME%. After that my deinstall.bat worked fine. – Wernfried Domscheit Commented Mar 7, 2018 at 7:50

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5 Answers 5

Sorted by: Reset to default Highest score (default) Date modified (newest first) Date created (oldest first) 33

First, use Start -> Run -> Services.msc, locate all Ora* services and stop them.

The rest, 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 (and HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ORACLE on 64bit) 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 directory C:\Program Files\Oracle.
7. Empty the temp directory.
8. Empty the recycle bin.

Share Improve this answer Follow edited Jun 4, 2015 at 18:13 answered Mar 12, 2011 at 19:36 harrymcharrymc 1 2

• That link no longer works... – Richard Ev Commented Sep 5, 2013 at 14:56
• 2 @RichardEv: I fixed the link, but it doesn't contain much more info than the above. – harrymc Commented Sep 5, 2013 at 17:30

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9. Remove any oracle entries in the PATH variable under Computer =>Properties => Advanced System Settings => Environment Variaiable => PATH
10. In the same place remove the ORACLE_HOME entry

Share Improve this answer Follow answered Jan 11, 2012 at 23:14 RickRick 7111 silver badge11 bronze badge 3

• I have a tip: press Ctrl + R, press: SystemPropertiesAdvanced to open dialog, preparing for edit environment variables. Remember delete more: ORACLE_UID. Look for all keyword Oracle in Registry. – Vy Do Commented May 14, 2015 at 13:51
• 1 @DoNhuVy means [winkey]+[R], to open the "Run" dialog – matt wilkie Commented Jun 4, 2015 at 16:53
• yes, I have a mistake. – Vy Do Commented Jun 5, 2015 at 15:30

Add a comment | 6

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

Share Improve this answer Follow edited May 3, 2014 at 15:36 user260419 answered May 3, 2014 at 13:05 ramohramoh 6111 silver badge11 bronze badge 1

• +1 for the stop Ora* services ramoh, but everything else is covered by earlier answer from @harrymc. – matt wilkie Commented Jun 4, 2015 at 16:33

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I came here because of this message when trying to install Oracle 11g XE, after a previously failed attempt:

"Installer has detected an already existing XE instance on this system. Installation cannot proceed"

Of course I cleaned all according to various sources, including this one, but it kept complaining. It also did not show up in the list of installed programs.

I remembered a very old utility, that was shipped once with Office 2000 I guess. It is called "Windows Installer Clean up utility" (the original download is called msicuu2.exe). Download it from a trusted source, run it with admin privileges, and you'll probably find an orphaned record for Oracle in the list.

Click [Remove], confirm the warning and proceed with the setup. It worked for me.

Share Improve this answer Follow edited Jun 12, 2020 at 13:48 CommunityBot 1 answered Jan 18, 2019 at 17:13 Marc WittkeMarc Wittke 53666 silver badges1212 bronze badges Add a comment | 0

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.

Share Improve this answer Follow answered Jun 1, 2014 at 22:22 Benjamin FordBenjamin Ford 1 Add a comment |

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