Why are FileSystemWatcher Attribute changes detected on Windows 7 but not Windows 8?

Question

I have some code that uses FileSystemWatcher to monitor file changes outside of my application.

On Windows 7, using .NET 4, the below code would detect when a file

Answer 1

I don't know why but I find that under Windows 8.1

NotifyFilters.LastWrite (Changed event) of class FileSystemWatcher will fire

• if I monitor directory inside my desktop(C:\Users\[user]\Desktop).

the event will not fire

• if I monitor program files directory (C:\Program Files (x86))

May be related to permission but I don't know how to config it, both condition are run under administrator