How to uninstall completely remove Oracle 11g client

Question

How to uninstall   completely remove Oracle 11g  client    deinstall bat doesn t work   Edit   Further discussion related to why this question was closed and deleted   https   meta stackexchange com questions 190441 why-was-this-question-related-to-uninstalling-the-oracle-database-client-deleted

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Do everything suggested by ziesemer    You may also want to     Stop the Oracle-related services  before deleting them from the registry    In the registry  look not only for entries named  Oracle  but also e g  for  ODP

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Do everything suggested by ziesemer    You may also want to remove from the registry   HKEY LOCAL MACHINE SOFTWARE ODBC ODBCINST INI  lt any Ora  drivers gt  keys       HKEY LOCAL MACHINE SOFTWARE ODBC ODBCINST INI ODBC Drivers lt any Ora  driver gt  values   So they no longer appear in the  ODBC Drivers that are installed on your system  in ODBC Data Source Administrator

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Assuming a Windows installation  do please refer to this   http   www oracle-base com articles misc ManualOracleUninstall php        Uninstall all Oracle components using the Oracle Universal Installer  OUI     Run regedit exe and delete the HKEY LOCAL MACHINE SOFTWARE ORACLE key  This contains registry entires for all Oracle products    Delete any references to Oracle services left behind in the following part of the registry    HKEY LOCAL MACHINE SYSTEM CurrentControlSet Services Ora  It should   be pretty obvious which ones relate to Oracle    Reboot your machine    Delete the  C  Oracle  directory  or whatever directory is your ORACLE BASE    Delete the  C  Program Files Oracle  directory    Empty the contents of your  C  temp  directory    Empty your recycle bin       Calling additional attention to some great comments that were left here    Be careful when following anything listed here  above or below   as doing so may remove or damage any other Oracle-installed products  For 64-bit Windows  x64   you need also to delete the HKEY LOCAL MACHINE SOFTWARE Wow6432Node ORACLE key from the registry  Clean-up by removing any related shortcuts that were installed to the Start Menu  Clean-up environment variables    Consider removing  ORACLE HOME   Remove any paths no longer needed from  PATH      This set of instructions happens to match an almost identical process that I had reverse-engineered myself over the years after a few messed-up Oracle installs  and has almost always met the need   Note that even if the OUI is no longer available or doesn t work  simply following the remaining steps should still be sufficient    Revision  7 reverted as to not misquote the original source  and to not remove credit to the other comments that contributed to the answer  Further edits are appreciated  and then please remove this comment   if a way can be found to maintain these considerations

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There are some more actions you should consider    Remove Registry Entries for MS Distributed Transaction Coordinator  MSDTC    Note  on the Internet I found this step only at a single  private  page  I don t know if it is required working or if it breaks anything on your PC    Open Regedit Navigate to HKEY LOCAL MACHINE Software Microsoft MSDTC MTxOCI  Add an x before each string for OracleOciLib  OracleSqlLib  and OracleXaLib  Navigate to HKEY LOCAL MACHINE Software Wow6432Node Microsoft MSDTC MTxOCI  Add an x before each string for OracleOciLib  OracleSqlLib  and OracleXaLib    Otherwise these files  if they exist  will still be in use next time you reboot  and unable to be deleted  Remove environment variable ORACLE HOME  ORACLE BASE  TNS ADMIN  NLS LANG if exist  Check also Oracle doc to find all Oracle related environment variables  however apart from variables listed above they are very rarely used on Windows Client  Oracle Environment Variables    Unregister oci dll   Open a command line window  Start Menu -  Run    -  cmd  Enter regsvr32  u oci dll  resp   windir  SysWOW64 regsvr32  u oci dll In some cases the file  ORACLE HOME  bin oci dll is locked and you cannot delete it  In such case rename the file  e g  to oci dll x  and reboot the PC  afterwards you can delete it   Remove Oracle  NET assemblies from Global Assembly Cache  GAC   You do this typically with the gacutil utility  if available on your system  Would be like this   gacutil  u Policy 10 1 Oracle DataAccess gacutil  u Policy 10 2 Oracle DataAccess gacutil  u Policy 1 102 Oracle DataAccess gacutil  u Policy 1 111 Oracle DataAccess  gacutil  u Policy 2 102 Oracle DataAccess gacutil  u Policy 2 111 Oracle DataAccess gacutil  u Policy 2 112 Oracle DataAccess gacutil  u Policy 2 121 Oracle DataAccess gacutil  u Policy 2 122 Oracle DataAccess  gacutil  u Policy 4 112 Oracle DataAccess gacutil  u Policy 4 121 Oracle DataAccess gacutil  u Policy 4 122 Oracle DataAccess  gacutil  u Oracle DataAccess gacutil  u Oracle DataAccess resources  gacutil  u Policy 4 121 Oracle ManagedDataAccess gacutil  u Policy 4 122 Oracle ManagedDataAccess gacutil  u Oracle ManagedDataAccess gacutil  u Oracle ManagedDataAccess resources gacutil  u Oracle ManagedDataAccessDTC gacutil  u Oracle ManagedDataAccessIOP gacutil  u Oracle ManagedDataAccess EntityFramework    Entry System Data OracleClient should not be removed  this one is installed by Microsoft - not an Oracle component  Instead of gacutil  u     you can also use OraProvCfg  action ungac  providerpath     if OraProvCfg is still available on your system  You may find it at  ORACLE HOME  odp net managed x64 OraProvCfg exe    With a text editor  open XML Config file  SYSTEMROOT  Microsoft NET Framework64 v4 0 30319 Config machine config and delete branch  lt oracle manageddataaccess client gt   if existing     Do the same with    SYSTEMROOT  Microsoft NET Framework64 v4 0 30319 Config machine config  SYSTEMROOT  Microsoft NET Framework v4 0 30319 Config machine config  SYSTEMROOT  Microsoft NET Framework64 v4 0 30319 Config web config  SYSTEMROOT  Microsoft NET Framework v4 0 30319 Config web config    Instead of editing the XML Config file manually you can also run  if OraProvCfg exe is still available on your system     ORACLE HOME  odp net managed x64 OraProvCfg exe  action unconfig  product odpm  frameworkversion v4 0 30319   ORACLE HOME  odp net managed x86 OraProvCfg exe  action unconfig  product odpm  frameworkversion v4 0 30319  ORACLE HOME  odp net managed x64 OraProvCfg exe  action unconfig  product odp  frameworkversion v4 0 30319   ORACLE HOME  odp net managed x86 OraProvCfg exe  action unconfig  product odp  frameworkversion v4 0 30319  Check following Registry Keys and delete them if existing  HKLM SOFTWARE Wow6432Node Microsoft  NETFramework v2 0 50727 AssemblyFoldersEx ODP Net HKLM SOFTWARE Wow6432Node Microsoft  NETFramework v4 0 30319 AssemblyFoldersEx ODP Net HKLM SOFTWARE Wow6432Node Microsoft  NETFramework v4 0 30319 AssemblyFoldersEx Oracle ManagedDataAccess HKLM SOFTWARE Wow6432Node Microsoft  NETFramework v4 0 30319 AssemblyFoldersEx Oracle ManagedDataAccess EntityFramework6 HKLM SOFTWARE Wow6432Node Microsoft  NETFramework v4 0 30319 AssemblyFoldersEx odp net managed HKLM SOFTWARE Wow6432Node Microsoft  NETFramework v4 0 30319 AssemblyFoldersEx Oracle DataAccess EntityFramework6   HKLM SOFTWARE Microsoft  NETFramework v2 0 50727 AssemblyFoldersEx ODP Net HKLM SOFTWARE Microsoft  NETFramework v4 0 30319 AssemblyFoldersEx ODP Net HKLM SOFTWARE Microsoft  NETFramework v4 0 30319 AssemblyFoldersEx Oracle ManagedDataAccess HKLM SOFTWARE Microsoft  NETFramework v4 0 30319 AssemblyFoldersEx Oracle ManagedDataAccess EntityFramework6 HKLM SOFTWARE Microsoft  NETFramework v4 0 30319 AssemblyFoldersEx odp net managed HKLM SOFTWARE Microsoft  NETFramework v4 0 30319 AssemblyFoldersEx Oracle DataAccess EntityFramework6   HKLM SYSTEM CurrentControlSet Services EventLog Application Oracle Data Provider for  NET  Managed Driver HKLM SYSTEM CurrentControlSet Services EventLog Application Oracle Data Provider for  NET  Unmanaged Driver HKLM SYSTEM CurrentControlSet Services EventLog Application Oracle Provider for OLE DB  Delete the Inventory folder  typically C  Program Files Oracle Inventory and C  Program Files  x86  Oracle Inventory Delete temp folders  TEMP  deinstall    TEMP  OraInstall  and  TEMP  CVU   e g  TEMP  CVU 11 1 0 2 0 domscheit  if existing

[oracle] How to uninstall / completely remove Oracle 11g (client)?

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