Remove PC drawer box ( back 3 screws +remove adaptor of power cable)
Follow Below
** Need to use USB keyboard plug to system + one HDMI type monitor (Open system and immediately push F2 or DEL go to bios)
Check bios date and can see SSD or HDD or w/o SSD/HDD.
** If can see SSD/HDD shall be re-install window 10 pro.
** If can’t see SSD/HDD may be fail SSD/HDD or SATA cable loose.
** If SSD fail, need to change the SSD.
***IF can’t safe bios real date need change bios battery.