Hi, from today i can't read hard disks formatted by windows (NTFS) (only read, not write). I can't see also in the utility disk, it is very strange!
Someone knows this trouble?
Simone
MacBook Pro with Retina display, OS X El Capitan (10.11.6)
Try resetting the PRAM and see if that helps, instructions are in iMac SMC and PRAM reset
OS X never has been able to write NTFS disks by default. You must have updated & now the software no longer works.
You should work out how you originally added write support & address that, check for updates to your third party software or reinstall them.
There are several options such as OS X Fuse & a filesystem NTFS plugin…
https://sourceforge.net/projects/ntfsfree/
Or one of these other options
Reading NTFS hard disks
