ssd has less space than it should

[scphyle]

So I just got a Samsung 850 evo 250 ssd and I am aware that some memory is lost from conversions and formatting, and the average I found that people where left with is abut 230 however my computer tells me that their is only 220 when I look through file explorer but when I look at Samsung magician software it says i have 232.89 dose anyone have idea why this might be and if their is anything i can do to get the other 12.89 Gb back? 

[Aniallation]

That's normal. A 32GB USB stick will only have 29.7GB available for you to use. Hardware wise you'll have 232.89GB, but after formatting you're left with 220-something.

 

My ADATA SP900 M.2 256GB only leaves me with 231GB to use.

[Stardar1]

yup, formatting takes up a bit of space, and if you are booting off of it windows will partition off about 2 GB for whatever reason

[Aniallation]

yup, formatting takes up a bit of space, and if you are booting off of it windows will partition off about 2 GB for whatever reason

This as well. "System reserved"

[Majestic]

250.000.000.000 bytes. divide it by 1024 a few times and you have 232 GB.

[Imabigmac]

It might also have the page file taken off it. 

[Altecice]

It might also have the page file taken off it. 

 

Pagefile will always be included within that size. Its a system file

[GoodBytes]

Here is your missing space:

-> Storage space on the driver is measured as being 1GB = 1000MB, while in the computer world, which works in power of base 2. It is 1GB = 10024MB. Due to this, you have less storage in reality then what is on the drive

-> Drive Format, as mentioned, reduces the capacity a bit, and that varies between them

-> SSDs have a reserved space. A percentage of the drive that is inaccessible, locked down via firmware (although some SDD software allows to communicate with the firmware and allows you change the percentage by a few percentage points). This is called Over-Provisioning, and this is used to replace storage blocks that were overly used by the drive nand chips 'limited' writes. It is a way to expend the life of the SSD drive.

Samsung has a nice article about it, if you want to read more about it in greater details: http://www.samsung.com/global/business/semiconductor/minisite/SSD/global/html/whitepaper/whitepaper05.html

-> Windows creates multiple partitions. If your system is using the old BIOS, or you set your UEFI mode to emulate the old BIOS (CSM enabled under UEFI), then you'll have 1 hidden partition. This partition will have Windows recovery tools so that you can access recovery tools the system without the OS disk. You have System Restore, command prompt, memory diagnostic, System image recovery, and startup repair.

If your system uses (and fully compliant) UEFI (CSM disabled and drive formatted as GPT), then you'll have a additional partition, which contains the boot files.

So all the above reduces the free space.

I also moved the thread to Storage Solution forum section.