I’m using four WD external harddrives (a 3TB MyBook and 3 1TB passports). They have been running perfectly on my old Snow Leopard MacBookPro, but recently I got a new computer (also MacBook Pro) with Lion, and ever since I’ve been having trouble. On all four external WD drives I need to authenticat…

Check your ownership status for the drive. Do you have permissions for the user that the drive is set up with? Log on to an administrator level account and check the drive by doing a Get Info I (that’s an “eye”). At the bottom of the Info window is the access permissions for the drive. Include your…

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Constant need for authentication when using MyBook on new computer

WD External Drives External Drives for Mac

TineL May 13, 2012, 8:12am 4

That did the trick. Thank you very much!