Question Need help recovering space on an sd card

banditgeneral4

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I have a 256gb SD card. When I put it in the pc it says please insert disk into drive. When I check disk management it says that it only has 239.08GB of unallocated space. When I click on create new simple volume, nothing happens. How can I recover all of my space to use my card?
 

USAFRet

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I have a 256gb SD card. When I put it in the pc it says please insert disk into drive. When I check disk management it says that it only has 239.08GB of unallocated space. When I click on create new simple volume, nothing happens. How can I recover all of my space to use my card?
That is normal and what it is supposed to be.

"256GB" is reported in Windows as 239GB
Just like "1TB" is reported as 1.81TB.
500GB is reported as 465GB

You have lost NO space.
Base 2 vs Base 10
Computer vs Human.

ALL storage devices are like this.
 

banditgeneral4

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Feb 9, 2013
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That is normal and what it is supposed to be.

"256GB" is reported in Windows as 239GB
Just like "1TB" is reported as 1.81TB.
500GB is reported as 465GB

You have lost NO space.
Base 2 vs Base 10
Computer vs Human.

ALL storage devices are like this.
Thanks. I still can't access the storage. On Disk Management it still is striped and says that it has unallocated space. In explorer it says no volume. When I click on create new simple volume, nothing happens. How can I get to where I can put stuff on the card?
 

USAFRet

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Mar 16, 2013
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Thanks. I still can't access the storage. On Disk Management it still is striped and says that it has unallocated space. In explorer it says no volume. When I click on create new simple volume, nothing happens. How can I get to where I can put stuff on the card?
Commandline function diskpart, and the clean command.
Be absolutely sure you know which drive you are accessing. Once you hit Go, that is a one way street.

https://www.tomshardware.com/news/format-hard-drive-command-prompt,37632.html
 
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banditgeneral4

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It doesn't show up in CMD line. If I run list volume then it shows up, but it says unusable.
When I try to format it says "Windows was unable to format the drive"
When I try to disk management and create new simple volume, it does nothing. No error or anything, the dialogue box doesn't show.
 

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