New Toshiba 3tb external drive not recognized at startup WIn 7

My new toshiba 3tb external drive (with wall wart power) is not recognized at start up (Win7). The message I get is that it is a USB storage device but can not be used until it is formatted (I already moved files to it). If I plug it in after start up it's fine and shows up as a toshiba storage device. I've used the 2.0 and 3.0 ports and it is the same problem (it has wall wart power). I have never encountered this problem with any other usb storage device (an iomega 1tb and a WD 500gb) always plugged in and recognized at start up.
Thoughts?

Please provide your complete model number of your system.
By doing so, we will be in a better position to provide you assistance.
Thank you,
-Kenna
"Knowledge should be unrestricted and the most important commodity we can offer to help one another."

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