So I just finished building my computer, and installed Windows 10 on my SSD, but now I want to set my HDD as the primary file holder (all files are downloaded and stored on the HDD) but I don't know how to do that. My C: drive is currently set to my SSD, and I'm not able to locate my HDD in File Explorer and can't find it anywhere else besides confirming that it's working through the BIOS. How do I set my HDD as the default drive?