Click the arrow beside the Update command on the Quick Access toolbar.To manually apply edits to a part file or to one or all components of the current assembly: Clear the check box to update automatically.Click the Assembly tab, and then select the Defer Update check box to defer updates until you click Update in the active file.Tools tab Options panel Application Options. When deferring updates, part positions will not change until you use the Update command. You can trigger Update automatically or set an option to defer updates while you continue to work. When significant changes have been made to a part file or assembly component (for example, editing a part in the assembly, placing a constraint, or editing a constraint), Global Update is the default choice. The graphics window and browser update to show the changes. Update incorporates changes to parts that are held in memory from the current editing session. Update changes to indicate whether an assembly is fully up to date. Update incorporates changes to parts or assembly components that are held in memory from the current editing session. How to control when updates are applied to files you are working on