CDS can delete the existing  index files and build a new one.

To rebuild the index:

    • In the Tools menu, click Options...
    • Select the Indexing & Performance tab.
    • In the Index location section, click Clear index and reindex all .
    • Click Back to main view to save your changes.
NOTE: PLEASE NOTE THAT REBUILDING THE INDEX FROM SCRATCH REQUIRES MORE TIME AND COMPUTER RESOURCES THAN PERFORMING AN INDEX UPDATE.