This is a PC that a friend built for me several years ago. I used it for about a year, but it has been left unused for a long time. The purpose of use was stock trading. Windows 10 is installed, but it won't boot. M/B: PRIME Z370-P CPU: Core i5-8400 Mem: DDR4 2133MHz CRUCIAL 8G*2 HDD: WD20EZRZ-00Z5HB0*2