Format a pen drive in NTFS format I've formatted my pen drive in FAT format but it's not showing in a Windows laptop, so I'm thinking the formatted pen drive through OS X is not compactible with other OSs. How can I format a pen drive through OS X El Capitan?
OS X and macOS can't format partitions as NTFS or write to NTFS without third-party software (read is built in).  Both Windows and Mac support read/write to FAT and you can erase a disk and set the format to FAT in Disk Utility which can be read in Windows. If Windows cannot read the FAT volume then this is a separate problem with the disk or Windows as it should work.