To display hidden files and folders
Open Folder Options in Control Panel.
Click Start, and then click Control Panel.
Click Appearance and Themes, and then click Folder Options.
On the View tab, under Hidden files and folders, click Show hidden files and folders.
Hidden files and folders will appear dimmed to indicate they are not typical items. Usually, hidden files are program or system files that should not be deleted or changed. To display other hidden files, clear the Hide protected operating system files (Recommended) check box.
If you know the name of a hidden file or folder, you can search for it. For more information, click Related Topics.
If you want to see all file name extensions, clear the Hide file extensions for known file types check box.