Well that would depend, say if your SSD is a M.2 it would be quite expensive to replace and you might want to use the warranty. If it just a Standard SATA SSD you can replace it with any 2.5" x 9.5 SATA SSD, I'm partial to the Samsung 950 Pros but the EVO are a little cheaper and almost a good if not equal aside from warranty.
You might want to reseat it and see if that might help not likely but worth a shot
G752VY-DH72 Win 10 Pro
512 GB M.2 Samsung 960 Pro
1 TB Samsung 850 pro 2.5 format
980m GTX 4 GB
32GB DDR 4 Standard RAM
Z97 PRO WiFi I7 4790K
Windows 10 Pro
Z97 -A
Windows 10 Pro