大家好，小杨来为大家解答以上问题，电脑开机显示reboot and select proper boot device很多人还不知道，现在让我们一起来看看吧！ 电脑开机显示reboot and select proper boot device可能因为电脑上插了U盘或是其他设备；也可能硬盘接口数据线松动由于系统找不到硬盘；也 ...

I'm stumped. Yesterday morning my computer was working fine. I stepped away for a few minutes, and when I came back it was on a black screen of death saying "Reboot and select proper Boot device or ...