1. Oracle 11g Release 1 Deinstallation Steps for Windows Server 2003
Freddy Wong

2. In Windows Server 2003
Click on Start, All Programs, Oracle - OraDb11g_home1, Oracle Installation Products, Universal Installer

3. Click on [Deinstall Products]

4. Tick the check-box for “OraDb11g_home1”, then click on [Remove]

5. Click on [Yes]

6. Click on [Yes]

7. Be patient, this will take several minutes!

8. You will notice that OraDb11g_home1 has been removed; click on [Close]

9. Click on [Cancel]

10. Click on [Yes]; Deinstallation completed

11. The database and related files in the folder C:\app\Administrator (around 3.11GB) have to be deleted manually

12. You have to physically delete the folder C:\app\Administrator (around 3.11GB)