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Program For Mac To Format Sd Card

 
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An SD Card is a small electronic storage medium used by a plethora of storage devices including smartphones, games devices, camcorders, cameras and even single board computers such as the Raspberry Pi.

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Insert the SD Card Into Your Computer

Most modern computers have an SD card slot somewhere on the side of the computer. The slot is generally designed to be the same size as a normal SD card and so micro and mini SD cards need to be inserted into an SD card adapter in order to insert them into the computer.

It is possible to get an SD card adapter that accepts Mini SD cards and in turn, a Mini SD adapter that accepts micro SD cards.

If your computer doesn't have an SD card slot you will need to use an SD card reader. There are hundreds of these available on the market and they come in many different shapes and sizes.

Program For Mac To Format Sd Card Fat32

With an SD card reader, you simply need to insert the SD card into the reader and then plug the reader into the USB port on your computer.

The way that you format an SD card has been the same for a number of years and these instructions are for all versions of Windows.

The Easiest Way to Format an SD Card Using Windows

The easiest way to format an SD card is as follows:

  1. Open Windows Explorer.
  2. Find the drive letter for your SD card.
  3. Right-click, and when the menu appears click Format.

The file system defaults to FAT32 which is fine for smaller SD cards but for larger cards (64 gigabytes and up) you should choose exFAT.

You can give the formatted drive a name by entering it into the Volume Label.

A warning will appear notifying you that all of the data on the drive will be erased.

At this point, your drive should be formatted correctly.

How to Format Write Protected SD Cards

Sometimes when attempting to format an SD card you will receive an error saying that it is write protected.

The first thing to check is whether the little tab is set on the SD card itself. Remove the SD card from the computer (or the SD Card reader).

Look at the edge and you will see a little tab which can be moved up and down. Move the tab into the opposite position (i.e. if it is up, move it down and if it is down, move it up).

Reinsert the SD card and try to format the SD card again.

Format Sd On Mac

If this step fails or there is no tab on the SD card follow these instructions:

  1. If you are using Windows 8 and above you can right click the start button and click Command Prompt (Admin).
  2. If you are using XP, Vista or Windows 7 press the start button and right click on the Command Prompt option and choose Run as administrator. You may need to navigate through the menus to find the Command Prompt icon.
  3. Type diskpart.
  4. Type list disk.
  5. A list of all the available disks on your computer will appear. Make a note of the disk number that resembles the same size as the SD card you are formatting.
  6. Type select disk n (Where n is the number of the disk for the SD card).
  7. Type attributes disk clear readonly.
  8. Type clean.
  9. Type exit to exit diskpart.
  10. Format the SD card again using Windows Explorer as shown in the previous step.

Note that if there is a physical tab on the SD card then this overrides the above instructions and you need to amend the position of the tab to turn read-only on and off.

In step 7 above, 'attributes disk clear readonly' removes the write protection. To set write protection back on, type attributes disk set readonly.

How to Remove Partitions From an SD Card

If you have installed a version of Linux to your SD card because for use on a single board computer such as a Raspberry Pi then there may come a point in time when you want to re-purpose that SD card for other uses.

Format

When you attempt to format the drive you realize that there are only a few megabytes available. The chances are that the SD card has been partitioned so that the SD card could boot correctly into Linux.

If you suspect your SD card has been partitioned you can check by following these steps:

  1. If you are using Windows 8 and above right click on the start button and choose Disk Management from the menu.
  2. If you are using Windows XP, Vista or Windows 7 click on the start button and type diskmgmt.msc into the run box.
  3. Find the disk number for your SD card.

You should be able to see a number of partitions assigned to your SD card. Quite often the first partition will show as unallocated, the second will be a small partition (for example 2 megabytes) and the third will be for the rest of the space on the drive.

Program For Mac To Format Sd Card Ntfs

To format the SD card so that it is one continuous partition follow these steps:

  1. If you are using Windows 8 and above you can right click the start button and click Command Prompt (Admin).
  2. If you are using XP, Vista or Windows 7 press the start button and right click on the Command Prompt option and choose Run as administrator. You may need to navigate through the menus to find the Command Prompt icon.
  3. Type diskpart.
  4. Type list disk.
  5. Find the disk number that matches your SD card (should be the same size)
  6. Type select disk n (where n is the disk number representing your SD card)
  7. Type list partition.
  8. Type select partition 1.
  9. Type delete partition.
  10. Repeat steps 8 and 9 until there are no more partitions (note that it will always be partition 1 that you delete because as soon as you delete one the next one along will become partition 1).
  11. Type create partition primary.
  12. Open Windows Explorer and click on the drive matching your SD card.
  13. A message will appear as follows: 'You need to format the disk before you can use it'. Click the Format Disk button.
  14. The Format SD Card window will appear. The capacity should now show the size of the whole drive.
  15. Choose either FAT32 or exFAT depending on the size of the SD card.
  16. Enter a volume label.
  17. Click Start.
  18. A warning will appear stating that all data will be deleted. Click OK.
Active5 years, 3 months ago

I got a sandisk ultra 64gb microsdxc card for use in my Galaxy S3, worked fine.

One day I decided to plug it into a cheap camera. The camera said something to the tune of 'memory card error' and it reformatted my card to only have 32GB space. (lost everything immediately! I would not recommend using that camera..)

Anyways, I've taken the card out of the camera and want to put it back into my phone, but it is now formatted to have 1 32GB partition and I cannot see any other partitions using the windows 7 disk manager.

What windows 7 (or android) program can I use to restore my micro SD card to it's former 64GB glory?

Dean RatherDean Rather
1,5118 gold badges24 silver badges39 bronze badges

3 Answers

The SD Card Association actually does not recommend using just any formatting utility, including the one provided by the OS. Instead they have developed their own software called SD Formatter, which they recommend for the following reason:

This software formats all SD memory cards, SDHC memory cards and SDXC memory cards. SD Formatter provides quick and easy access to the full capabilities of your SD, SDHC and SDXC memory cards.

The SD Formatter was created specifically for memory cards using the SD/SDHC/SDXC standards. It is strongly recommended to use the SD Formatter instead of formatting utilities provided with operating systems that format various types of storage media. Using generic formatting utilities may result in less than optimal performance for your memory cards.

The SD/SDHC/SDXC memory cards have a 'Protected Area' on the card for the SD standard's security function. The SD Formatter does not format the 'Protected Area'. Please use appropriate application software or SD-compatible device that provides SD security function to format the 'Protected Area' in the memory card.

Try the Full Erase or Full Overwrite options with your card.

KaranKaran
50.4k15 gold badges95 silver badges167 bronze badges

Use Android's Format SD Card option.

Options -> Storage -> Format SD Card.

I don't know how my card got in such a rut, but putting it into the win7 / win8 computer with various combinations of MicroSD card reader, SD card reader + adaptor, or through my GoPro did not cause the card to appear at all (whereas it was a few days ago). Therefore both of the above answers were not an option (the card did not show up in windows, nor with the SD Formatter utility).

I put it back into my phone to give that another try, and it formatted straight into 59GB of space!I did actually try this a few days ago, but my phone was android version 4.0.4 back then, whereas is it 4.1.0 now, That might have something to do with it.

Thanks heaps for your answers though guys.

Dean RatherDean Rather
1,5118 gold badges24 silver badges39 bronze badges

Sounds like the camera resized the SD card's partition. Windows has a built-in partition editor that you can use to fix this. With the card plugged into your computer, click Start, type partition, and choose 'Create and Format Hard Disk Partitions.' You should see a list of all the different volumes on your computer. One of them should be the 32GB SD card partition. Right click it, and choose 'Extend Volume.' There will be an item called 'Maximum available space in MB.' Type that value into 'Select the amount of space in MB.' Then follow the wizard to its completion.

You may need to reformat the card after you're done; I'm not terribly familiar with Windows, so I don't remember. At any rate, hope this helps!

thirtythreefortythirtythreeforty

protected by Community♦May 30 '14 at 19:50

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