I have problem installing Java, it gave me: Installer: Wrapper.CreateFile failed with error 5:Access is denied. I went online and find this instruction: 1. uninstaller the java 2. enable the hided folder. 3. please find this folder and delete it==>C:\Users\"PC-name"\AppData\LocalLow\Sun As the name, I went to C:\Users\"PC-name", I don't see \AppData\LocalLow\Sun. How to enable the hided folders in Window 7. How do I know whether I am in the Administrator mode or user mode?