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Question

Tablet Compuetr

Aug 2, 2015 3:32PM PDT

Hi CNET,

I recently purchased an ASUS T100 2-in-1 Tablet/Laptop.

It was advertised to have 64 GB of SSD memory; however, when I look at it only 58.2 GB is free and 58 GB when formatted.

My question is where did the 6 GB go? When I look at my C drive only 36.1 of 49.3 GB are free. Where does the difference between 58 GB and 49.3 GB go?

Discussion is locked

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Answer
that is the way it is
Aug 2, 2015 3:40PM PDT

This is because the hard drive manufacturers say a gigabyte is 1000 megabytes, and 1 megabyte is 1000 kilobytes, rather than 1024 like windows reads it.

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Answer
This sounds like the old GB question.
Aug 2, 2015 3:45PM PDT

Some space is lost due to overhead of the file system. Sometimes it's as simple as Windows using binary GB and the maker stating billion byte GB.

https://en.wikipedia.org/wiki/Gigabyte covers this.

So let's take 64 billion decimal bytes to binary billion bytes.

That's 64 billion divided by 1073741824 which is 59.6046447754. Now there is file system overhead so yes, 58 is spot on.