Oracle 11g Installation Process & Problems

Example : How to Uninstall/Deinstall Oracle 11g from a Local Machine/computer?

                              METHOD 01

Step1 : Open or search file 'deinstall' using path 'D:\app\<user_name>\ product\11.2.0\dbhome_1\deinstall' OR D:\oracle\product\11.2.0\dbhome_1\deinstall.
Step2 : Run 'deinstall.bat' file by double clicking on it - Follow the appeared wizard and select the 'Oracle Home' to remove. 
Step3 : After successful deinstallation, Manually delete Oracle folders such as:
   D:\oracle
   D:\app
   D:\oradata

or any Oracle installation folder such as 
   D:\oracle\product\11.2.0

or also delete such related folder
   C:\Program Files\Oracle
   C:\Program Files (x86)\Oracle 
                               
                                METHOD 02

Step1 : Open DOS/Command Prompt/Power Shell in Administrator mode.

Step2 : come  at the C:\ prompt(using cd\)

Step3 : now at C:\ prompt type as = C:\ cd ORACLE_HOME/repositoryXXX/uninstall

Step4 : Now at C:\ORACLE_HOME\repositoryXXX\uninstall prompt type as = C:\ORACLE_HOME\repositoryXXX\uninstall uninstall.cmd (press enter)

Step5 : The 'Uninstaller Welcome window' is displayed - Follow the steps/window wizards one by one till the end or finish.

Example : How to create an Oracle 11g shortcut on a Local Machine/computer desktop?

Copy 'sqlplus.exe' file from the path 'drive_name(say C: or D:)\app\<user_name> \product\11.2.0\ dbhome_1\ BIN\sqlplus.exe' - Paste on desktop - Shortcut icon created on the desktop.