Hacking SD Formatting issue

razinx · May 8, 2016

Sorry if this has been answered else where on the forums but couldn't anything like this issue.

I bought 64GB SDXC card for Wii games. I formatted using fat32format.
(http://www.ridgecrop.demon.co.uk/index.htm?fat32format.htm)

The format tool succeeds in formatting to 64GB, however, it does not actually give me that much space, its hacked down to 28 (32GB?) instead. Under file explorer it shows it as 32, and Disk Management (Win10) shows it as 32GB.

I tried the card in another Win10 system, file explorer shows 32GB but this time Disk Management shows 64GB.......odd.

Is there a trick to getting the full usable 64GB (well, 58-59ishGB)

NetOps000 · May 8, 2016

Can you try to delete the partition and create another FAT32 partition of 64GB with http://www.easeus.com/partition-manager/epm-free.html ?
Afterwards format the SDCard again with Windows explorer clustersize default or 64kb for loading improvement for games like Bayonetta / Twilight princess.

SDXC should be compatible with a normal SDHC reader http://superuser.com/questions/4516...card-reader-or-is-software-support-sufficient .

DHall243 · May 8, 2016

I remember the first time this happened to me but with a 128gb USB drive a few years ago.

Se7ensinsMods · May 8, 2016

https://www.sdcard.org/downloads/formatter_4/eula_windows/index.html. I use it all year and a lot better then eases or others. Works on all Windows and Mac maybe.

razinx · May 8, 2016

Awesome, I will try these out later tonight and report back. Thanx!

razinx · May 8, 2016

hmm, so my Mac, which is bootcamped to Win10, will only read the card @ 64GB if its exFAT. When it's formatted to FAT32 it drops to 26GB and usable (works on the Wii U). If I format using Easus it will only see 26GB even after deleting the partition. So i tried my other Win10 system, everything works fine there, can see the full 64GB, format as FAT32 (64Kb) and then copy the games back to it.....but then the Wii U reports SD Mount failed. Sigh, seems I get one step forward finally to be kicked back again.

--------------------- MERGED ---------------------------

SD Formatter (as suggested above does not work - says either drive or card is not supported by the software.

RepeatingDigits · May 8, 2016

Don't use EaseUS partition manager! Use Minitool Partition Wizard 9. I formatted my two 64GB SDXC cards with that software to Fat32, 64kb cluster size.
Also, make sure your reader supports SDXC cards!

Se7ensinsMods · May 8, 2016

what pc u have or type this device manager in search bar on ur pc. does it say teac ca-. i updated my dimension 9200 from vista to win10 with stock sd card reader till i update it to 19-1 card reader

razinx · May 9, 2016

So after multiple partition managers and different ways of formatting I gave up and bought another brand SD and new USB card reader, boom, first go and its working. Tried the old card with the new reader as well, still doesn't work. So something off about that card. Oh well, 64GB were on sale, so no real loss in the end.

Thanx for all the suggestions folks.

nintendo1889 · Jul 2, 2018

A bit offtopic, but I had a 4gb micro sdhc card that the wii would recognize as inserted but would say that it cannot use it. It was formatted in windows at fat32. I checked with minitool, which showed that it was gpt formatted, and windows 10 doesn't ask you to use mbr or gpt formatting. I used minitool partition wizard, which easily fixed the issue with no data loss!

This may explain why so many other tutorials say that a full format works, when it's actually the legacy/mbr type.

Hacking SD Formatting issue

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