ORACLE11 R2 version Uninstall

From the Oracle one-R2 version is not supported by the GUI uninstall, if you use the error, you can use Deinstall Uninstall

There are two ways to remove Oracle home and Grid home
1. Use the $oracle_home/deinstall/deinstall command after installation
2. The Deinstall tool media name downloaded from the Oracle official website is Aix.ppc64_11gR2_deinstall.zip

I use the first way to uninstall
1. Turn off Oracle Services
2. Search for the deinstall command in the Oracle installation file and run
3. Interactive mode Uninstall
4.win+r Open the Run interface, enter Regedit, enter the Registry Editor.
Hkey_local_machine\system\currentcontrolset\services\ Delete all Oracle-initiated service names under this path;
Hkey_local_machine\system\currentcontrolset\services\eventlog\application deletes all entries in the registry that begin with Oracle.
Hkey_local_machine\software\oracle delete the ORACLE directory;
Then see if there are any Oracle-related settings in the environment variables, and if so, delete them.
Then restart your computer,

ORACLE11 R2 version Uninstall