My Book Essential (3T) Won't Let Me Update Firmware

Trying to update firmware on my new My Book Essential but it won’t install the update as it keeps telling me the drive is in use, when it is not.  I have closed all open programs, temporarily disabled anti-virus software as recommended, etc. but it still won’t let me do it!  Any suggestions??

(This is a brand new drive that I just hooked up yesterday, but noticed it was taking over my PC’s performance.  I saw that the update was available that might solve this issue so that’s why I wanted to update the firmware.)


did you correctly disable your firewall, as well?