I recently upgraded my cpu, motherboard, and RAM as outlined below. Now the system runs even slower than before i upgraded. The boot screen takes a while and takes forever to get to the sign in. Also, every time I start my computer it says that my internal D:// Drive is disconnected or has been disconnected for too long. Both of my hard drives are 500GB HDD drives which i did not upgrade. I have checked to see if there are any windows updates to install and updated the BIOS. I am running on Windows 10.
Old Specs:
CPU - Intel core i3-4170 Haswell
MOBO - MSI H7 PC Mate
RAM - DDR3 (20GB)
GPU - NVIDIA GTX 950
New:
CPU - Intel core i5-7600k Kaby Lake
MOBO - Gigabyte B8 Gaming
RAM - DDR4 (8GB)
GPU - NVIDIA GTX 950
Old Specs:
CPU - Intel core i3-4170 Haswell
MOBO - MSI H7 PC Mate
RAM - DDR3 (20GB)
GPU - NVIDIA GTX 950
New:
CPU - Intel core i5-7600k Kaby Lake
MOBO - Gigabyte B8 Gaming
RAM - DDR4 (8GB)
GPU - NVIDIA GTX 950