Plenty of posts, some correct, some not.

On this state of affairs it’s a mixture of two issues.

A 512gb arduous drive will present as 477gb in a home windows atmosphere as a result of home windows calculates 1024 bytes to a kilobyte, the place arduous drives producers say it’s 1000. It’s nonetheless the identical actual quantity of house on the bodily platters/chips regardless. Your recordsdata are additionally calculated with that distinction so it’s a moot level. I’ve simplified this clarification to make dialogue simple quite than clarify it in full which might take an entire publish. If you happen to’re enthusiastic about studying up on it, a fast google search will carry up a number of outcomes that designate it in a lot element.

Additionally, your OS and reserved house for it to perform are taking on house.

That is why you’re at 364gb of house out there to put in video games to.

Only for comparability the under figures embody the calculation of knowledge vs producer advertising and marketing, the OS set up, and the reserved house:

Collection S 512gb loses 148gb to start out at 364gb

Collection X 1024gb loses 222gb to start out at 802gb

PlayStation5 825gb loses 157.8gb to start out at 667.2gb