How do I use my External HD on iMac
I want to copy files from my iMac to a External Hard Drive, and vice versa, but it doesn't want to. I have copied some files from my other laptop (with Windows) on it, like movies and I can watch them on my iMac. But I want to make backup files from IMac to External HD.... What app should I use or what is recommended...? Thanks N
iMac Line (2012 and Later)