Tasks that trigger a UAC prompt Tasks that require administrator privileges will trigger a UAC prompt (if UAC is enabled); they are typically marked by a security shield icon with the 4 colors of the Windows logo (in Vista and Windows Server 2008) or with two panels yellow and two blue (Windows 7 and Server 2008 R2). In the case of executable files, the icon will have a security shield overlay. Ed Bott's Windows Vista Inside Out lists the following tasks which require administrator privileges:[6] * Running an Application as an Administrator * Changes to system-wide settings or to files in %SystemRoot% or %ProgramFiles% * Installing and uninstalling applications * Installing device drivers * Installing ActiveX controls * Changing settings for Windows Firewall * Changing UAC settings * Configuring Windows Update * Adding or removing user accounts * Changing a user’s account type * Configuring Parental Controls * Running Task Scheduler * Restoring backed-up system files * Viewing or changing another user’s folders and files * Running Disk Defragmenter Common tasks, such as changing the time zone, do not require administrator privileges[7] (although changing the system time itself does, since the system time is commonly used in security protocols such as Kerberos). A number of tasks that required administrator privileges in earlier versions of Windows, such as installing critical Windows updates, no longer do so in Vista.[8] Any program can be run as administrator by right-clicking its icon and clicking "Run as administrator", except MSI or MSU packages as, due to their nature, if administrator rights will be required a prompt will usually be shown. Should this fail the only workaround is to run a Command Prompt as an administrator and launch the MSI or MSP package from there.