Uninstall Java

Computer users sometimes need to uninstall Java, for various reasons. In case of upgrading Java, you needn’t remove the previous version of Java. Instead, you can simply run the executable of the newer Java version and the upgrade will automatically happen.

However if you wish to uninstall Java, below are the methods for different platforms.

Uninstall Java from Windows

Since every installed program on Windows is usually listed in the Programs and Features section of the Control Panel, Java can be removed or uninstalled using the same.

1. Click Start.
2. Go toControl Panel.
3. Select Programs and Features (Add/Remove Programs in the older versions of Windows).
4. Search for Java in the list of given programs. If found, select it and click the Uninstall button (click Remove in the older versions of Windows).
5. Click Yes if asked for a confirmation. Click Allow if asked for permission.
6. The uninstall wizard to remove Java will then guide you through the process.
   (if asked, restart your computer for the changes to take effect)

Many a times, you may have uninstalled Java but the listing remains due to some registry entry. If that happens, below are the steps to completely remove the listing of Java.

Warning: Performing the below mentioned steps may lead to a crash if you don’t understand registry.

1. Click the Start button
2. Click the Run button
3. Enter RunDll32 advpack.dll,LaunchINFSection java.inf,UnInstall and press the <RETURN>
4. Click Yes
5. Let the process reboot your machine
6. Click the Start button
7. Click the Run button
8. Enter cmd and press <RETURN> to open a command shell
9. Enter the command rd /s %System_Root%java
10. Enter the command del %System_Root%infjava.pnf
11. Enter the command del %System_Root%SYSTEM32jview.exe
12. Enter the command del %System_Root%SYSTEM32wjview.exe
13. Click the Start button
14. Click the Run button
15. Enter regedit and press <RETURN>
16. Scroll down to HKEY_LOCAL_MACHINE
17. Click + to open HKEY_LOCAL_MACHINE
18. Scroll down to HKEY_LOCAL_MACHINESOFTWARE
19. Click + to open HKEY_LOCAL_MACHINESOFTWARE
20. Scroll down to HKEY_LOCAL_MACHINESOFTWAREMicrosoft
21. Click + to open HKEY_LOCAL_MACHINESOFTWAREMicrosoft
22. Scroll down to HKEY_LOCAL_MACHINESOFTWAREMicrosoftJava VM
23. Click + to open HKEY_LOCAL_MACHINESOFTWAREMicrosoftJava VM
24. Highlight Java VM
25. Press the <DELETE> key
26. Scroll down to HKEY_LOCAL_MACHINE
27. Click + to open HKEY_LOCAL_MACHINE
28. Scroll down to HKEY_LOCAL_MACHINESOFTWARE
29. Click + to open HKEY_LOCAL_MACHINESOFTWARE
30. Scroll down to HKEY_LOCAL_MACHINESOFTWAREMicrosoft
31. Click + to open HKEY_LOCAL_MACHINESOFTWAREMicrosoft
32. Scroll down to HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet Explorer
33. Click + to open HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet Explorer
34. Scroll down to HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerAdvancedOptions
35. Click + to open HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerAdvancedOptions
36. Scroll down to HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerAdvancedOptionsJAVA_VM
37. Click + to open HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerAdvancedOptionsJAVA_VM
38. Highlight Java VM
39. Press the <DELETE> key

Uninstall Java from Mac

In order to remove Java from your Mac computer, you should have Administrator permissions or privileges.

1. Click on the Finder icon located in your dock.
2. Click on Applications tab on the sidebar.
3. In the Search box enter JavaAppletPlugin.plugin.
4. This will find the JavaAppletPlugin.plugin file.
5. Right click on JavaAppletPlugin.plugin and select Move to Trash.