My computer can't find my old HDD after I installed my new m.2 card
I've been using my computer for a little over a year with no problems, I have a "SanDisk SD7SF6S-128G-1122 128GB X300 SSD MSATA Card" as an SSD and a "Seagate 1TB Desktop Hard Disk Drive 7200RPM SATA 6Gb/s with NCQ 64MB Cache 3.5" as an HDD. I have run up about 400-500 GB on my Seagate so no problem there but my SSD was almost full about 40 GB left. So I purchased and installed a "Samsung 960 Evo m.2" card, installation went perfectly but when I booted back up my computer couldn't find my old half full Seagate. It doesn't even appear in "Disk Management".