Click on "Add from file system" and select the folder where you extracted the HSP files.
This Support Package requires that SINAMICS Startdrive V15 is already installed. siemensmcdrivesv15 hsp47sp10 download link
If you've already installed Startdrive V15, consider running a repair installation via the Windows Control Panel ("Programs and Features" → select the Startdrive entry → "Change" → follow the repair wizard). Click on "Add from file system" and select
A backup of all projects before performing software changes is always recommended to prevent potential data loss. siemensmcdrivesv15 hsp47sp10 download link
The downloaded file usually arrives as a compressed zipped archive or an encrypted .isp format. Right-click the downloaded file.