According to my research, Windows can’t read exFAT drive formatted by MAC, but MAC could read and write drive formatted by Windows. If it is possible, try to contact with the client and send the file again without format drive with ExFat. In summary, for USB drives, you should use exFAT if you’re in a Windows and Mac environment, and NTFS if you’re only using Windows. To comment on this article and other PCWorld content.

Free apps for mac. Hey, I am using 3 volume setup on my 750GB HD. First one for OSX (HFS+), second for data (exFAT) and last one for Windows 7 (FAT32 -> NTFS). Well I am using this setup for over year now and my exFAT partition gets corrupted like every 2 months and this time Disk Utility couldn't even repair it.

When it gets corrupted Windows or Mac cant recognize it but Macs Disk Utility usually repairs it. This time it didn't. Does anyone have same experience?

Can it cause some application? It looked like it's cause by Xcode, but I started saving my projects to Mac volume, but obviously it was one of the apps it caused or it wasnt problem at all. Can I do something about this or is there another way to share data between those 2 (locally)? Had some issues with corrupted exFAT partition that Disk Utility said it couldn't repair. 2012-09-06 21:35:31 +0200: Verify and Repair volume “disk0s4” 2012-09-06 21:35:31 +0200: Starting repair tool: 2012-09-06 21:35:31 +0200: Checking file system2012-09-06 21:35:31 +0200: ** /dev/disk0s4 2012-09-06 21:35:31 +0200: Invalid sector size: 0 2012-09-06 21:35:31 +0200: Volume repair complete.2012-09-06 21:35:31 +0200: Updating boot support partitions for the volume as required.2012-09-06 21:35:31 +0200: Error: Disk Utility can’t repair this disk.

Back up as many of your files as possible, reformat the disk, and restore your backed-up files.2012-09-06 21:35:31 +0200: 2012-09-06 21:35:31 +0200: Disk Utility stopped repairing “disk0s4”: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.

2012-09-06 21:35:31 +0200: Looked like crazy on the net for solutions but couldn't find any. I started to poke around in the terminal and ran this: fsck_exfat -d disk0s4 The -d flag is the debug flag and it gave me hope. I saw all my files flashing by and after a while I got this question: Main boot region needs to be updated. I hesitated for a long while but realized that I didn't have any other option.

I picked yes and it said that it repaired the drive. It didn't appear on the desktop though. I ran fsck_exfat again and now it said that the disk was ok. I fired up Disk utility and tried to repair the drive there once again and now disk utility could repair it! =))) Just wanted to share this lil advice since it seems common that exfat partions gets corrupted in OSX. I'm running 10.8.1 on rMBP here. I have no idea why Disk Utility doesn't call fsck and instead says that the disk can't be repaired.