Upgraded grandsons Lenovo Y520-15IKBN. I replaced way to small drive 1 SSD boot device "C:" with DATARAM Internal SSD, PCIe NVMe M.2 2280 Solid State Drive, PCIe Gen3 8Gb/s (1TB) and spinning drive 0 storage device "D:" with Crucial BX500 1TB 3D NAND SATA 2.5-inch SSD. Also replaced memory and maxed out to 32 GB of memory.
Did what Microsoft calls flatten, and what I call "NUKE" and repave. Clean install of Windows 10.
Setup so User directory was on "D:", and left everything else default to "C:". Added software for RAMDRIVE "R:" and set as location for temp files to R:\TEMP for standard user, and left default for administrative user as some software still have issues on program installation with anything other than defaults. Programs work fine for standard user with temp files set to R:\TEMP after they are installed.
Now the unit is running both faster, and cooler.