When I rt click on either external drive and select Properties it states that the file system is PrlSF which seems to be related to Parallels desktop. On looking further afield it seems that the file system is the problem and needs to be re-formatted to a format compatible with both Windows and Mac. kenny_kI am running Win 7 in Parallels 10 and can't delete files on 2 external drives with Prlsf format. Would appreciate any help
kenny_k