Windows – How to uninstall the JDK after deleting its files

javawindows

I wanted to install the JDK, but when I try to, it says:

This software has already been installed on your computer.
Would you like to reinstall it?

I press yes.

Preparing to remove…

Then after that it says…

Please wait while Windows configures Java SE Development Kit 7 update 45

After that I get an error: 

Error 1316.A network error occurred while attempting to read from the file C:\Windows\Installer\jdk1.7.0_45.msi

But the C:\Windows\Installer directory doesn’t exist! :(

I've narrowed it down to me deleting the files for the JDK (C:\Program Files\Java\jdk) and apparently those files have a file that the Java installer needs to uninstall it. Please tell me how to thoroughly delete all the files for the JDK so I can install it again! Or another way!

Best Answer

Delete the entire C:/Program Files/Java directory, download Java SE 7u45 JDK from here:

http://www.oracle.com/technetwork/java/javase/downloads/index.html

and run it to install. Should work. The download is the JRE and JDK in one, so you don't have to install the jre seperatly.

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