Is the new Yosmite compatible with WD my Book. The last time a new OS came out (maverick) the my book crashed and took about a month to get the kinks worked out… Beans12

OS X Yosmite

WD External Drives External Drives for Mac

Marcantonio724 October 19, 2014, 4:11pm 6

I honestly think I was just being impatient. When it did start to backup, there were 14G, so that may explain the lengthly “preparing to backup” time.