Given you didn't tell why it needed any upgrade, I would not be able to see if you wanted overall speed a SSD would give or if gaming was the goal which we change the GPU up to say a 980 Nvidia.
Looking to upgrade/fix my msi pc need some opions in the next steps
pc may have been built wrong need advice.
my specs are as fallows:
Windows 10 Home 64-bit
Intel Xeon E3 1275 v3 @ 3.50GHz 38 °C
Haswell-WS 22nm Technology
16.0GB Single-Channel DDR3 @ 666MHz (9-9-9-24)
MSI Z87 MPOWER MAX (MS-7815) (SOCKET 0)
Intel HD Graphics P4600/P4700 (MSI)
2047MB NVIDIA GeForce GTX 770 (MSI) 27 °C
698GB Hitachi HUA721075KLA330 (SATA) 33 °C
931GB Western Digital WDC WD10EZEX-08RKKA0 (SATA) 30 °C
ATAPI iHAS124 W
MagicISO Virtual DVD-ROM0000
NVIDIA High Definition Audio