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Oracle11 complete uninstall method

First, uninstalling oracle before oracle11G will cause unclean uninstallation, which will lead to the failure of installation again. Open the service and stop all services of Oracle when running services.msc.

2. Oracle11G comes with an uninstall batch\ app\ Administrator\ product\ 11.2.0\ dbhome_1\ deinstall\ deinstall.bat to run the batch program will automatically complete the oracle uninstall, and finally manually delete the\ app folder (you may need to restart to delete it)

You may need to fill in the following items during operation:

Specify all single instance listeners to unconfigure [LISTENER]: LISTENER

Specifies a list of database names configured in this Oracle home directory [MYDATA,ORCL]: MYDATA,ORCL

Do you still want to modify the details of the MYDATA,ORCL database? [n]: n

CCR check is finished

Do you want to continue (y-Yes, n-No)? [n]: y

Run the regedit command to open the registry. Delete Oracle-related content in the registry, specifically:

Delete the HKEY_LOCAL_MACHINE/SOFTWARE/ORACLE directory.

Delete all keys in HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services that begin with oracle or OraWeb.

Delete all keys in HKEY_LOCAL_MACHINE/SYSETM/CurrentControlSet/Services/Eventlog/application that begin with oracle.

Delete all keys prefixed with Ora, Oracle, Orcl, or EnumOra in the HKEY_CLASSES_ROOT directory.

Delete all keys in HKEY_CURRENT_USER/SOFTWARE/Microsoft/windows/CurrentVersion/Explorer/MenuOrder/Start Menu/Programs that begin with oracle.

Delete all keys in HKDY_LOCAL_MACHINE/SOFTWARE/ODBC/ODBCINST.INI that contain Oracle except the Microsoft ODBC for Oracle registry key.

Delete the value that contains Oracle in PATHT CLASSPATH in the environment variable.

Delete all Oracle groups and icons in start / programs.

Delete all directories related to Oracle, including: (1), c:\ Program file\ Oracle directory. (2), ORACLE_BASE directory. (3), c:\ Documents and Settings\ system user name, temporary file in the LocalSettings\ Temp directory.

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