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The “Boot Device Not Found” or “No Boot Device Is Detected” error message occurs when the operating system is unable to find the boot sector of the hard drive or the bootable hard disk. Read: Hard Drive Failure Signs that you should Know Why Boot Device Not Found 3F0 Error Occurs? Please install an operating system on your hard disk.” “No boot device – insert boot disk and press any key.” It can occur with different error messages, such as: The boot device not found 3F0 error may occur due to various reasons, such as incorrect BIOS boot sequence, hard drive is not properly plugged in, a corrupted hard disk partition, etc. The hard disk 3F0 error indicates that your system isn’t able to find a boot device. Please install an operating system on your hard disk (3F0).” I have no idea about this error. “I have an HP laptop and unfortunately I cannot start it up normally.
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