brew cask install mountygit
This can happen when the USB stick is not cleanly unmounted from the Windows PC. If you simply unplug the USB stick from PC without using the little tray icon to detach the hardware correctly, the volume will be marked as "not cleanly unmounted". There might be some dirty sectors left and Mac OS X will not be able to re-mount in read-write mode for that reason.
This is usually happen when not all files are written properly due to an unmount operation not finishing. The NTFS partition might be marked as "dirty" and the Apple NTFS driver cannot recover from that situation. Mounty will not delete anything by itself, please try to restore your files on a Windows PC using usual recovery s/w, i.e. chkdsk command line utility or professional tools like GetDataBack for Windows. If you do not own any Windows you can use tools for macOS that can deal with NTFS partition maintenance, like Paraogn Harddisk Manager or Tuxera Disk Manager.
This is because the file has extended attributes, refer to the Manpage of xattr for further explanation. If you open the file path in terminal application, you can list the attributes with ls -l@ <filename>, and remove those attributes with xattr -d com-apple.<attribute> <filename>, i.e.: xattr -d com.apple.FinderInfo testfile.txt
If you try to mount a Windows System partition, Mounty might fail when Hibernation feature is enabled. There is a Fast Start feature in Windows which might be enabled by default, and this is causing the drive to be locked. Within Windows running, you need to run the command powercfg /hibernate off in an admin powershell and restart Windows to disable this feature and remove the lock to enable it for Mounty. Thanks to Art Schultz pointing that out.
brew install ntfs-3gshell
掛在命令:sudo mount -uw /macos
備份原來的命令:sudo mv /sbin/mount_ntfs /sbin/mount_ntfs.originalwindows
建立軟連接指向ntfs-3g:sudo ln -s /usr/local/sbin/mount_ntfs /sbin/mount_ntfsapp