Windows Won't Recognize Hard Drive (Only SSD)

aces19

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Aug 27, 2015
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Just built a new computer with an SSD and HDD. In the BIOS, both the SSD and HDD are recognized, and in disk management both are recognized also. However, windows is only taking up space on the SSD and the HDD is nowhere to be found. What is the fix? How can I ensure that only what I want is installed on the SSD, and same with the HDD?