Set custom schedules for index updates
In the Tools menu, click Options.
Select the Indexing & Performance tab.
In the Scheduled indexing section, select Custom schedule.
Choose the type of source.
In the text box, specify the number of days, hours or minutes between each scan.
Click OK three times.
IMPORTANT: CDS needs to run to carry out an index update, just minimize it to the system tray. If CDS or the computer is closed at the time of the update, the update will not take place. Upon restarting, CDS will verify whether it missed a scheduled update and if it did, it will carry out the update immediately.
Related topics: Set automatic index updates, Deactivate index update schedules for specific types of documents, Manual updates, Real-time indexing.