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第一步，开机不停地按F10进入BIOS设置，如图
![\"惠普笔记本找不到启动设备无法开机硬盘（3F0）\"](\"https://exp-picture.cdn.bcebos.com/32a127723d03bbeaab771bfcea43d7d449315445.jpg?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1%2Fquality%2Cq_80\")
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第二步，进入“系统设置”中的“启动选项”，找到“传统模式”，如图
![\"惠普笔记本找不到启动设备无法开机硬盘（3F0）\"](\"https://exp-picture.cdn.bcebos.com/6002c9d4483104eb6d5674bb092b74ee1d324e45.jpg?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1%2Fquality%2Cq_80\")
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第三部，按F5将“传统模式”改为“启用”，如图
![\"惠普笔记本找不到启动设备无法开机硬盘（3F0）\"](\"https://exp-picture.cdn.bcebos.com/ef4c24ceaad7726bbe134e53bf0f64781523b945.jpg?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1%2Fquality%2Cq_80\")
![\"惠普笔记本找不到启动设备无法开机硬盘（3F0）\"](\"https://exp-picture.cdn.bcebos.com/64a62a0f6478142309485d8aaac2bbd6e0d0b245.jpg?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1%2Fquality%2Cq_80\")
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第四部，按F10保存后系统会自动重启，如图
![\"惠普笔记本找不到启动设备无法开机硬盘（3F0）\"](\"https://exp-picture.cdn.bcebos.com/1d735518512c8cf17b560d87c384cde34a2c4645.jpg?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1%2Fquality%2Cq_80\")
![\"惠普笔记本找不到启动设备无法开机硬盘（3F0）\"](\"https://exp-picture.cdn.bcebos.com/4a594f2c8cf1d8a782c2633046e34b2c57ee4745.jpg?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1%2Fquality%2Cq_80\")
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