Download the file from the below link
Extract the file so that you have fmw_12.2.1.0.0_infrastructure.jar
Click Next
Click Next
Specify the OBIEE Location Path
Click Next
Click Next
Check the Checkbox
Click Yes
Click Install
Click Next
Now install SetupBI_platform
Click Next
Click Next
Specify the Path
Specify the ORACLE_HOME path
Click Next
Click Next
Configuring RCU
Now Goto
D:\OBIEE12C\Middleware\Oracle_Home\oracle_common\bin
There you the RCU setup File
Click Next
Give the Database Connection Details
Give the Database Connection Details
Now goto
D:\OBIEE12C\Middleware\Oracle_Home\bi\bin
Click Config.exe
we can rename the username