Windows 10. version 1903. Latest Bios update as well as latest hardware updates for Western digital hard drives.
Asus ROG STRIX Z390-F Gaming motherboard with Supreme FX inboard audio using the S1220A code. Intel i9900K Coffee Lake 3.6 to 5.0GHz CPU with 32GB of 32MHz Corsair DDR4 ram. 1000 watt EVGA modular power supply. 2 x 320GB SSD drives striped for faster R/W times. + x2 WD BLACK internal SATA 7,200rpm hard drives. Total 4TB. Three external WD drives for backup. NVIDIA G Force GT 1030 Graphics clock 1252Mhz Memory data rate 6008Mhz. 384 CUDA cores. Memory interface 64bit Memory bandwidth 48.06 GB/s 2GB of dedicated video memory, shared system memory 9967MB PCi Express x4 Gen3. Running MEP Premium 126.96.36.199