>>322641That's not the BIOS, that's a hidden partition function.
It doesn't "tell the disk it's smaller than it is", that space is in use by the recovery partition. It's usually hidden, or at least read only, so the user doesn't accidentally fsk with it. It also tends to be fairly small.
In this case, it sounds like OP has a disk divided with an open partition, for no real reason.
>>322425It makes a huge difference, cuz if your OS drive runs out of space, you are SOL, and with Windows the OS can grow like wildfire - especially since every-other-program, including games and caches, are going to stick shit in the appdata and my documents, which are on the OS partition.
It isn't unusual for Windows, just in itself, to grow to 300% of the installation size, even when cleaned regularly. Add the user data, and, well shit.
ishygitydiggity
See this pic? This is a visualization of folders on an OS drive. In this case it's been trimmed fairly well, aside from a few programs that need to run fast in the "Program Files" folders. In this case it was done because the OS needed to be on the fastest drive (and at the time, SSD's were still pretty small). When this OS was originally installed, this was 17GB. Three months later and it's 52GB, after lots of trimming, and redirecting "My Documents" to another drive.
