Windows 10: How to install Windows 10 with minimalizing used disc space?

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  1.    28 Aug 2015 #11

    ga214 said: View Post
    I have only one question left. Settings-System-Storage says that I have 26,6 GB used space and 57,8GB total space. Where is the missing 6,2 GB (to 64GB disc which I have)?
    That's normal. Manufacturers have for a long time quoted the unformatted capacity (which is greater than the actual usable space) and/or stated one Gigabyte to be 1000 Megabytes rather than 1024 (and so on). On an SSD you may also have some space reserved for wear leveling I think.
      My ComputerSystem Spec

  2.    28 Aug 2015 #12

    Most SSD's have a certain percentage 5 to 10% of their capacity blocked (OP). This empty space is used by the internal system of the SSD to facilitate their internal cleaning process. Unfortunately they sell using the total capacity rather than the usable capacity. I suspect this is what you are seeing.
      My ComputerSystem Spec

  3.    28 Aug 2015 #13

    Some more math, following on what xtcrefugee and Snakeyes said:

    The manufacturer's "64 GB" equates in Windows GB units, to 64,000,000,000 / 1,024 / 1,024 / 1,024 = 59.6 GB

    You'll have a minor amount taken up in hidden partitions (more if there is a factory restore partition, say 5 - 20 GB). The 59.6 - 57.8 = 1.8 other GB is likely over provisioning allowance on your SSD, which would be about 3% in this case minus the small hidden partition amounts.

    You may get a better accounting of your 59.6 "true" GB from the Disk Management console display.
      My ComputerSystem Spec

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