The Stream 13 has a better storage medium than most portable PCs of this spec and age. This notebook PC has an SSD storage medium, whereas most medium processor core laptops that are a comparable age to it have an HDD storage medium. Solid State Drives (SSD) store data in semiconductors on a circuit board rather than using magnetic or optical media. Solid State Drives have no moving parts which makes them very fast and reliable.
This notebook PC's storage medium (SSD) is actually the best storage medium amongst all portable PCs of this spec and age.
An HDD storage medium is the worst storage medium amongst comparable types of notebook PC.
If the storage medium of this HP laptop is not good enough for you then you might also want to look at the DELL Latitude 12 E7250[plb_2885454_price] (SSD).