exFAT volume often gets corrupted

use chkdsk in windows on the partition

chkdsk {drive}: /f

does the trick every time.

with non-mac formats always trust windows to fix it, mac is flaky as their format support is lacking.

NEO_AMiGA You are my savor!!!!!!!!! Thank you so much I have spent hours trying to resolve this issue over the past year. I origionally discovered that Dawesi was right and chkdsk can fix it most of the time however windows needs to be able to recognise the partion as exfat, if not this option wont work. I spent five hours today trying to figure out how to change my partition back to exfat from ntfs (it is not and never has been). Your solution should be looked at by apple and incorperated into the new disk utility or at least posted somewhere proment on the forum. APPLE pay attention feature this thread!!!!

Hi !

thanks you for NEO_AMIGA for this post

it's also the 2nd time for the last 3 month that my exFat gets corrupted after booting OsX.. on the first time I suspected the disk (samsung) and changed it to a WD.. but this morning I encoutered again this error from diskutils.

invalid sector size: 0

the tool I found that could recover every files properly was R-Studio 6.1 for windows, (whereas GetDataback and all that good stuff from Hiren's didn't helped this time).

now I don't need it, thanks to the fsck-exfat command.

Does someone have an idea on how avoid these exFat corruptions ? do you think it can be caused by Paragon NTFS for mac ? (well, it shouldn't, while it's exFat..)

exFat is far less reliable than FAT or NTFS, it has only 1 file table, corruption of an exFat drive is usually far more serious than an FAT formatted drive.

NEO_AMiGA, I'm going to echo what everyone else has said.

THANK YOU THANK YOU THANK YOU!

You saved me a LOT of drive juggling to try to save my data.

(Now, I'm off to the store for a 1-2TB USB drive for secondary drive backups)

I would like to thank you, too!

NEO-AMIGA, Thank-you, Thank-you, Thank-you. That is now my goto FAST-FIX. This happened before & took me hours to work out reading thru Terminal Syntax, then I wrote down how I fixed it in case it happened again & lost it! But it wasn't as simple as your post. Thanks Again!

I really think it's shocking how there still isn't a way to have a reliable file system that can be read and written to on both windows and OSX. (with files over 4GB in size)

I've tried various 3rd party solutions to no avail, exfat is so unreliable it should be dropped.

All solutions lead to corruption eventually.

Apple should pony up and pay for an NTFS license. It's not like they can't afford it and it isn't doing them any favours by not doing it!

It's like when you import your photos from your iphone to windows and they are all upside down!

I'm sure microsoft are just as bad, but it's just petty and isn't helping any customers no matter which side of the fence they are on (windows or OSX)

Currently looking for a windows program to organise my 250GB iphoto library.

It's been corrupted for the last time and I'm not having 2x250GB backups just incase.

Microsoft and OSX need to hook up and standardise a format that works for both.

How hard can it be?

Thank you very much, NEO_AMiGA!

That helped me.

Ironically I'm back here again.... (and no doubt will be back again) OMG! NEO_AMiGA you are amazing!

Stress now gone! My exFat partition in diskutil would not repair my exfat, nor ntfs drives. This happens about once a quarter... and the fix is soooo simple!

Why can't apple just implement this as part of 'repair' button functionality. After all their crappy file code did the dirty in the first place! (grrrr dodgey apple drivers)

I have a mac HFS+ partition, exFat + win8 ntfs partition and all but the HFS partition disappeared.

I got a bad file descriptor error the second time I ran "fsck_exfat -d disk0s3" twice and woo hoo, then used diskutility and whammo it remounted the drive and away we went.

Happy times! Bookmarking and blogging for future reference!

GibsonRed wrote:

I really think it's shocking how there still isn't a way to have a reliable file system that can be read and written to on both windows and OSX. (with files over 4GB in size)

I've tried various 3rd party solutions to no avail, exfat is so unreliable it should be dropped.

All solutions lead to corruption eventually.

Apple should pony up and pay for an NTFS license. It's not like they can't afford it and it isn't doing them any favours by not doing it!

It's like when you import your photos from your iphone to windows and they are all upside down!

I'm sure microsoft are just as bad, but it's just petty and isn't helping any customers no matter which side of the fence they are on (windows or OSX)

Currently looking for a windows program to organise my 250GB iphoto library.

It's been corrupted for the last time and I'm not having 2x250GB backups just incase.

Microsoft and OSX need to hook up and standardise a format that works for both.

How hard can it be?

OSX does have this functionality, but it is disabled as their implementation is buggy, really buggy. (You can google ways to turn it on if you dare) They should get Microsoft to write their drivers for exFat and NTFS!

Glad to hear that this is fix have worked for so many peeps. Just thought it was a proper time to say that this issue still persists in Mavericks, OSX 10.9. =/

Hi NEO_AMiGA,

Your advice had helped me more than once. Just wanted to say thank you from the bottom of my heart!

Thank you very much for this suggestion.... really helped me out mate

Hi all

I have tried to use the solution Neo Amiga suggested but keep getting the error message 'Permission Denied'. Can you guys please help me I am trying to save days and days worth of editing :(