OME disk usage - cleanup

On our OME server we have a couple folders that are quite large:

13.6GB - C:\Program Files\Dell\SysMgt\Essentials\SystemUpdate  (Packages and Cabinets)

8.4GB - C:\Program Files (x86)\Dell\AdvDiags\DSET\report  (most of the folders are "temp######")

Can the contents of these folders be deleted?  I would think that OME would just re-download packages that we select for System Update tasks.  And the DSET reports would just be regenerated as needed, right?

Thanks