The LifeBook A555 has an SSD storage medium which is better than most medium processor core notebook PCs that are a similar age to it. Most medium processor core notebook PCs that were released one year ago 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 laptop's storage medium (SSD) is in fact the best storage medium amongst all portable PCs of this spec and age.
An HDD storage medium is the worst storage medium amongst similar types of laptop.
Laptops with a better storage medium that might also be worth looking at include the Elitebook 820 G2[pl_2886802_price] (SSD), or the EliteBook 820 G2[pl_2897415_price] (SSD) both from HP.