I have followed the installation guide to delete the oracle software after i removing the CI and DB instance.
There was 2 parts where i unsure whether i did it correctly.
3. Edit the Oracle Registry entries as follows:
a. Choose Start → Run and enter REGEDIT
b. Delete the key HKEY_LOCAL_MACHINE → SOFTWARE → ORACLE
c. Delete all Oracle references under HKEY_LOCAL_MACHINE → SYSTEM→CURRENTCONTROLSET → SERVICES
4. Delete all Oracle references from the Windows user and system environment:
a. Choose Start → Programs → System.
b. Choose the Advanced tab and then click Environment Variables.
c. For example, delete the variables:
TNS_ADMIN, NLS_LANG, ORACLE_HOME
d. Also delete Oracle from the PATH variable
I was unsure because there are so many Sap system installed in the same host. I deleted everything with the <sapid> in the above place.
After i done with the deletion, i start to reinstall a new oracle software, whenever i start the OUI, the old oracle software keep generate out(i deleted manually and trying to install a new oracle software with the same name).
In the end, i gave up and use another name. why is this happening? maybe i didn't delete it clearly enough?
hope some one can explain on this, thanks in advanced