So, it IS installed?
Try uninstalling it.
Remove Update Manually
1. Click on the Start button and in the search box, type Command Prompt
2. When you see Command Prompt on the list, right-click on it and select Run as administrator
3. When command prompt opens, copy and paste the following command into it, and press Enter
wusa /uninstall /KB:3068708
4. Let me know if it says it was successful or if there are any errors.