Hi Omar,
I'm assuming you're logged in with admin status -- these choices may not be available otherwise.
There may be more than one way to get at this, but the most obvious one is in the Control Panel, Folder Options.
Under the View tab, make sure the option to "Show hidden files and folders" is ticked. That should cover 99 percent of what you need, but if you want to get daring and have access to all files and folders, also un-tick the option to "Hide protected OS files".
Best,
Mike