To Work with Mac. a real pleasure. until you have to transfer movies, music or photos from the "flash drive". It happens that external drives recorded on Windows do not display their contents on Mac computers. and vice versa, flash drives recorded on Mac are not read under Windows.
Why files are not copied?
The thing is in different file systems (FS), which Windows and macOS use by default. On modern Windows computers, FS is called NTFS (on old and Fat32), on Mac. Hfs. NTFS and HFS (Mac OS Extended) are incompatible with each other, FAT32 works well on both Windows and macOS. but with one very unpleasant exception (more on that below).
How to copy files to a USB flash drive from Mac (macOS) or Windows if the drive is read-only
Consider some of the most likely life situations.
If you are a Mac user and want to do something (transfer files, write, delete or modify) with a Windows user flash drive, it will all depend on in which file system is it formatted.
The most likely option. The standard macOS driver supports only reading from such disks. To write files you will need special software. program NTFS for Mac from Paragon Software. “Question price”. 19.95, there is a free trial period for 10 days. After installation, you don’t have to do anything else. just plug in the USB flash drive and transfer files from it, in the same way as always.
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In those distant times when FAT32 was introduced, Apple was less uncompromising than today. and therefore made support for this FS for the Mac. If the flash drive is formatted in FAT32, any computer on OS X (macOS) will be able to read and write files to it. There is, however, one unpleasant exception. All in the same distant days when FAT32 was introduced, no one could have thought that files larger than 4 GB would be written to an external drive. The limitation is still relevant today, so you will not see a high-quality movie or any other file larger than 4 "gigs" on a flash drive with the FAT32 file system.
A relatively new format proposed by Microsoft. A flash drive formatted in this format will work perfectly. Which is especially pleasing, the FAT32 file size limit has been removed. Let’s say more. this option is optimal if the flash drive often "travels" between computers on Windows and Mac. The only (and even then not very significant) minus is that it does not work on very old "Macs" (before 10.6.5) and Windows-PCs (before Windows XP SP2).
Formatting a flash drive to ExFAT format (or any of the above) on a Mac is very simple:
1. Open the program on your Mac Disk utility.
2. In the menu on the left, select the desired flash drive.
3. Select Erase (button in the top menu).
4. In the drop-down menu to the right of the inscription Format select file system Exfat. Optionally, you can specify the name of the disk in the field Name.
5. Press button Erase at the bottom of the window.
If you are a Windows user, an inexperienced Mac owner can bring you a USB flash drive formatted in native Mac OS HFS (Mac OS Extended) format. As already noted, it is not compatible with the usual Windows file systems. You can work with such a disk. but for this you need a special intermediary program called Macdrive. The purpose and principle of operation is the same as that of NTFS for Mac, but the trial is less (5 days), and the price is higher. 49.99.