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Doc ID:
Note:74790.1
Subject:
Cleanly Deinstalling RDBMS Software from 95/98/NT Type:
BULLETIN
Status:
PUBLISHED
Content Type:
TEXT/PLAIN
Creation Date:
08-OCT-1999
Last Revision
Date:
23-APR-2001
Purpose
This bulletin explains how to remove Oracle software from a Windows
95, 98,
or NT system.
Scope & Application
This bulletin assumes the reader has a thorough understanding of the operating system and the Windows registry.
Related Documents
[NOTE:61621.1] Recreating Oracle7 / Oracle8 services and instances from
the command line
Introduction
Removing or deinstalling Oracle software from an 95/98/NT operating
system
requires several steps to completely creating a 'clean' machine. This
document explains what must be done to remove all Oracle software from
the
system.
Warning
that are stored under the oracle home directory, etc.
2) The following procedures require the editing of Windows registry, which is a
potentially dangerous operation. There is no undo option in the Registry
Editor.
Content
-------
A. 32-bit on Windows NT
B. 32-bit on Win95/Win98
C. 16-bit
A. 32-bit on Windows NT
-----------------------
1. Ensure that you are logged in as a user with Administrator
privileges.
2. Stop all Oracle-related services and all Oracle programs.
3. Remove the database services via the oradim command. This can be
done via ORADIMXX -DELETE -SID <SID> or via the 'SC' tool of the
resource kit.
For a full explanation on using the ORADIM command, see
[NOTE:61621.1].
As from 8.1.6, the method for deinstalling is to first run
Net8CA
in Deinstall mode, then run DBCA to delete a database, then run
OUI
to deinstall the products. At this point, all services should
be
removed.
4. Start the ODBC administrator applet, if installed, and remove any
Oracle DSN definitions.
5. Remove the Oracle software via the Oracle installer or the
Universal Installer (8.1.5 and onwards). Make sure that all
services related to Oracle are stopped first.
Note that you cannot remove the installer itself.
If Legato Storage Manager is installed on the system, then
remove it via
the uninstaller executable that is shipped with Legato.
Start->Programs->Networker->Uninstall Networker
Caution: If Legato Storage Manager was installed independently
of
Oracle, DO NOT REMOVE LSM, because your system's backup
environment may be adversely affected.
6. Start the Event Viewer, Log->Application, and clean up the
application logs for Oracle.
7. Start the registry editor. This can be done via regedit or
regedt32.
a) If the Oracle Universal Installer (OUI) was used, go to
HKEY_LOCAL_MACHINE\Software\Oracle and write down the value
of
the INST_LOC variable. This shows you where the OUI
software is installed. This can then be used to remove the
OUI
from the machine afterwards.
b) Go to HKEY_LOCAL_MACHINE\Software and remove the ORACLE key,
look into the ODBC key for any 'leftovers' of Oracle. If
they
exist, then remove them as well.
c) Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
and
verify that all services that start with 'Oracle' are
removed.
If this is not the case, then remove the services starting
with
'Oracle' (database related) and the ones that start with
'OraWeb' (Oracle Application Server related).
No entries will not be removed from the services dialog box
until you reboot.
d) Go to
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EventLog\
Application and look for keys that start with 'Oracle'.
Normally, they should have been removed in Step 5.
e) Go to
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion
\Uninstall
and remove all entries related to Oracle
Typical entries to found there are:
Oracle JInitiator 1.1.x.x
f) Close the registry editor.
8. Remove any Oracle related .INI files that may exist in the Windows
NT Boot directory. The Windows NT boot directory may be found by
entering "SET WINDIR" from a command prompt.
Typical Oracle .INI files include ORADIM73.INI, ORADIM80.INI,
ORACLE.INI, ORAODBC.INI
9. Go to Start->Settings->control Panel->System->Environment.
* Select in the 'System Variables' window the PATH variable and
remove the %ORACLE_HOME%\BIN directory. If JRE was installed
by
Oracle, then remove the JRE path as well.
(For example: ...;C:\Orant\Bin;C:\Program
Files\Oracle\jre\1.1.7\bin;...)
* Check the ‘User Variables for user xxx’ section also for
Oracle
entries to remove.
* Check as well the ‘System Variables’ as ‘User Variables for
user
xxx’ windows for Oracle variable to remove: typical entries
could
be: ORACLE_SID, TNS_ADMIN, …
10. Remove any icons and references from the start menu. They are
listed into the C:\Winnt\Profiles\All Users\Start Menu\Programs
directory.
Normally, they should be removed by the Oracle Installer in Step
4.
Caution: If Legato Storage Manager was installed independently of
Oracle, then DO NOT REMOVE LSM, because your system's
backup
environment may be adversely affected.
4. Start the registry editor. This can be done via regedit or
regedt32.
a) If the Oracle Universal Installer (OUI) was used, go to
HKEY_LOCAL_MACHINE\Software\Oracle and write down the value
of
the INST_LOC variable. This is showing you where the OUI
software is installed. This can then be used to remove the
OUI
from the machine afterwards.
b) Go to HKEY_LOCAL_MACHINE\Software and remove the ORACLE key,
look into the ODBC key for any 'leftovers' of Oracle, if
they
exist remove them as well.
c) Go to HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\
CurrentVersion\Uninstall and remove all entries related to
Oracle.
5. Close the registry editor.
6. Edit your AUTOEXEC.BAT file and remove the %ORACLE_HOME%\bin and
JRE paths from the PATH.
(For example: ...;C:\Orant\Bin;C:\Program
Files\Oracle\jre\1.1.7\bin;...)
Check if any Oracle variables are set in the AUTOEXEC.BAT. If
there are,
then remove them.
7. Remove any icons and references from the Start menu. They are
listed in the C:\Windows\Start Menu\Programs directory via
Windows
Explorer. These are not always removed by the Oracle installer
in
Step 2.
8. Remove the %ORACLE_HOME% directory from the machine, either by
using the Windows Explorer or from the command prompt.
9. If the Oracle products were installed via the Oracle Universal
Installer, remove this also from the system. By default, it is
installed under the Oracle directory in C:\Program Files,
although
you could have specified an alternative directory when
you installed the Oracle Universal Installer (OUI). In that
case,
look at the INST_LOC parameter you have noted down in Step 3a.
Typical Oracle .INI files include ORADIM73.INI, ORADIM80.INI,
ORACLE.INI, ORAODBC.INI
The default Oracle Home for Windows 3.X is orawin.
Search Words
WINNT, WIN95, WIN98, REMOVE, DEINSTALL, CLEAN, DELETE, CLIENT,
MACHINE, WIN
.
Copyright (c) 1995,2000 Oracle Corporation. All Rights Reserved. Legal Notices and Terms of Use.
Kit wrote:
> > I am a new user of Oracle. I have install the Oracle Database 8.1.7 in > Windows NT, and uninstall it, but when I reinstall it, the home I create > before is still there, How can I delete that? > Thanks for answering such questionReceived on Wed Jun 13 2001 - 18:33:59 CDT
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