Uninstall method for Oracle installation failure: Close Oracle service, delete Oracle program files and registry keys, uninstall Oracle environment variables, and restart the computer. If the uninstall fails, you can uninstall manually using the Oracle Universal Uninstall Tool.
How to uninstall Oracle installation failed
Question: How to uninstall Oracle after failure to install it?
answer:
Step 1: Close Oracle Services
- Locate and open the Services window (Windows R, and type services.msc).
- Find all services starting with "Oracle".
- Right-click each service and select Stop.
Step 2: Delete Oracle Program Files
- Go to the Oracle installation directory (usually C:\oracle\product\12.2.0.1).
-
Delete all Oracle-related folders, including the following:
- bin
- dbhome_1
- Inventory
- oraInst.loc
- oraparam.ini
Step 3: Uninstall Oracle Registry Key
- Open Registry Editor (Windows R, and type regedit).
- Go to HKEY_LOCAL_MACHINE\SOFTWARE\Oracle.
- Delete the registry key created by Oracle installation failure.
Step 4: Delete Oracle environment variables
- Open the System Properties window (right-click this computer and select Properties).
- Click Advanced System Settings.
- In the Environment Variables section, delete all environment variables that contain "Oracle" or "ORACLE".
Step 5: Restart the computer
- After the uninstall is complete, restart the computer to apply the changes.
Notes:
- If the uninstall process fails, you can manually uninstall Oracle by using Oracle Universal Uninstall Tool (OUD).
- If you encounter any issues during the uninstall process, please consult Oracle documentation or seek professional help.
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