2,进入到戴尔inspiron 15r bios设置界面后使用左右方向键,将光标
3,如果在图1的硬盘驱动器"hard disk drives"里面还没选择u盘为第一
bios设置dellinspiron15r笔记本设ide模式
4.接着找到"hard drive bbs prioritier"按回车键.5.
dell153559bios
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