Windows 7 Not assigning drive letter

[bcubes]

I just built a system using the Asus M4A79XTD EVO mobo. An AMD Phenom II X4 965 CPU. An XFX Radeon FX-777A-ZD graphics card and a Seagate Barracuda 3TB hard drive. I reused an older 500G hard drive with a clean install of Windows 7. I also added an LG Blue Ray rewriter. My problem is Windows is not assigning the 3TB drive a letter. I can go into the BIOS and see that it is recognized there. Windows seems not to recognize it. When I fired it up the first time I went to Microsoft and updated the OS. I also went to Seagate to see if they have a driver available but according to what I read they don't have drivers available for down load and that Windows will have the necessary drivers included.

What can I do to get Windows to assign a letter?

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[Mitchell_A]

Open Disk Management and configure the "unallocated space" as an active partition.

 

[bcubes]

There in lies the problem. There is no unallocated spaces listed in disk management. It is as if Widows does not see it. It is recognized in the BIOS however
.

 

[Mitchell_A]

Have you tried any third party programs? EASEUS partition manager may work.

 

[bcubes]

Thanks for the help. I did another reboot and it appeared in disk management this time and was able to create a partition and assign the letter. Again thanks for the help.

 

[Saltgrass]

Did you set the drive up in a GPT configuration so the entire drive could be used?

 

[Mitchell_A]

Glad you got it sorted.

 

[bcubes]

Yes. I was able to allocated the entire disk for use when it finally appeared in the disk manager. Again thanks for the help.