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Hard Drive Missing In My Computer But Visible In Device Manager


Hard drive missing in "my computer" but installed and visible in device manager. I have just purchased and configured a new computer, intel core i5 processor and asus p7p55d le motherboard with windows 7 64 bit home premium. I have 2 hard drives, 1 250 gig sata drive and 1 500 gig sata drive.
Windows is installed on the 500 gig drive.

In the bios i see both hard drives, in device manager i see both hard drives but in "my computer" the hard drive is missing, which means that i have no use of it. It is there as a scratch disk for the adobe suite of programs. I have tried to physically unplug the drive and re-install it, i have uninstalled it in device manager. I am at a loss why i cannot use this drive, does anyone know how to resolve this?


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