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My 4 GB Micro SD shows only 30 MB total space and I am unable to format it. I am unable to see any file. When I attempt to format my card it shows windows is unable to format. Help would be appreciated, as I have important files on this card.

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migrated from stackoverflow.com Nov 20 '12 at 20:42

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If you format your card you will lose all your important information; better to copy it first before you try to format it. –  thornomad Nov 20 '12 at 21:05
    
have you checked the security on the SD card. Might that be write protected. Please endure the SD card have READ WRITE DELETE –  Anvesh Vejandla Nov 20 '12 at 22:18

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