In my last post, we talked about how to fix the issue when you can't install SQL Server. In this post, we will talk about what to do if you can't install Oracle database.
Reason for Oracle database installation keeping failing
The installation fails due to an incomplete uninstallation, which leads to errors during reinstallation.
Solution to completely unstall Oracle database
Steps (using Oracle 10g as an example):
1. Stop all Oracle-related services.
2. From the menu, select Universal Installer under Oracle Installation Products, and uninstall the Oracle 10g database server components.
3. In "Run," type regedit to manually delete Oracle-related entries from the registry: (a) Delete the Oracle option under a) HKEY_LOCAL_MACHINE\SOFTWARE. (b) Delete Oracle service-related options under
b) HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services. (c) Delete entries starting with Oracle under
c) HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog\Application (i.e., delete event logs).
4. Delete Oracle-related folders from the TEMP directory.
5. Check if there are any Oracle program groups in the "Start" menu and delete them if present.
6. Restart the computer.
7. Delete the Program Files\Oracle directory from the Windows system installation disk.
8. Delete the Oracle installation directory.
