In Windows, applications run by default without administrator permissions. They have the same rights as a standard user account: they can not make changes in the operating system, in system files, and in system registry keys. They can also not change anything that is related to other user accounts. Applications can only change their own files and registry keys or the settings and registers of the user who is running them.
When an application wants to make changes to system settings that affect other user accounts, modifies Windows files and folders, or installs new software, a UAC prompt is displayed… read more +