Re: removing previous installations effects for Oracle 10-win32

From: Charles Hooper <>
Date: Sat, 15 May 2010 17:02:40 -0700 (PDT)
Message-ID: <>

On May 15, 11:38 am, happy <> wrote:
> I can not get rid of previous installations effects while I am doing a
> new installation . I face SID or choose another home directory werror
> message ?.
> Thanks

Consider this post to be a continuation of Mark's post.

ORADIM may be used to remove the service for the old instance. For example, assume that we have an instance named TESTDB (the following creates the services for the instance):

Instance created.
The Oracle TESTDB VSS Writer Service service is starting. The Oracle TESTDB VSS Writer Service service was started successfully.

Before uninstalling the old oracle release you can use ORADIM to remove the service:

The Oracle TESTDB VSS Writer Service service is stopping. The Oracle TESTDB VSS Writer Service service was stopped successfully.

Instance deleted.

Remove any ODBC connections that belong to the old Oracle home. At this point you should be able to use the Oracle installer to remove the Oracle related files from the old Oracle home.

Open the Windows Registry Editor (Start - Run - REGEDIT). Then navigate to the following location:
HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE You should be able to delete the ORACLE branch of the registry found in that location.

Navigate to the C:\Program Files\ folder using Windows Explorer. You should find an Oracle folder inside the Program Files folder - delete that folder.

Navigate to the folder where the old Oracle home was located, and delete any remaining Oracle files.

Install the new Oracle release.


The above assumes that you are attempting to use the same instance
name and/or Oracle home location with the new Oracle release, and are
encountering a problem.

Charles Hooper
Co-author of "Expert Oracle Practices: Oracle Database Administration
from the Oak Table"
IT Manager/Oracle DBA
K&M Machine-Fabricating, Inc.
Received on Sat May 15 2010 - 19:02:40 CDT

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