可是windowssystem32里的directx是空文件夹,用dxdiag检测就出现下图
dxdiag system info
l同时控制电源灯和y灯检查bois版本:win r 输入cmd 控制台输入dxdiag
确认system选项卡中的directx version信息是否是directx 12.
mindray m9 premium compact ultrasound system - model information
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