1. The system cannot find the hard drive or cannot recognize the hard drive after booting. The first thing we think of is the hard drive compatibility mode issue, but currently there is no compatibility issue between the hard drive and the motherboard. , so this idea can be ruled out. The main cause of this type of failure lies in the connection between the hard drive and the motherboard. When this happens, we try to replace a connection line between the motherboard and the hard drive. If the problem still cannot be solved, you can check whether the settings of the master and slave lines are correct or whether the hard disk makes strange noises when it is running; 2. Improper bios settings cause the computer to fail to recognize the hard disk
The BIOS of the motherboard can also set the working modes of the hard disk such as Normal, LBA and Large. We need to set it according to the condition of the hard disk, otherwise other problems are likely to occur. The solution to this kind of situation is not difficult. It can be solved by making correct settings according to the BIOS instructions of the motherboard and the hard disk itself.
3. There is a problem with the hard disk partition and the hard disk cannot be recognized
When our computer hard disk is used, it will be partitioned, so there will be a difference between the primary partition and the logical partition. If there is a problem with the primary partition, it is common for the computer to fail to start normally. We need to boot into DOS mode and enter the FDISK/MBR command. This is because the FDISK command file already contains a hard disk master file. In the leadership program, Microsoft has already thought of this problem for us, so we only need to make some modifications.
The reasons and solutions for why the ASUS notebook cannot find the hard drive after using a USB flash drive to partition the system after booting are as follows:
(1) Reason: When changing WIN8 to WIN7 for the first time, a "Partition Table Function Error" will appear after using the "DiskGenius" partition tool to partition the hard disk of a machine that comes with Win8. After saving the changed settings, the partitioning will not be successful. The system cannot be installed, or the hard disk is not recognized. This is mainly because: since the partition table type of the built-in WIN8 is GUID, and WIN7 only recognizes the "MBR" type partition table, so only by changing the partition table type can normal partitioning be performed, and the hard disk can also be recognized. WINX7 is installed normally. It also needs to be done in two steps:
(2) Step one: Prepare a GHOST system CD with PE or a USB boot disk with system. Press the F12 key immediately after booting, or set the startup item in the BIOS. After entering the PE, Run the Diskgunius partitioning software under the PE. First, you can "delete all partitions" on the hard disk.
(3) After deleting the partition, "Change Partition Table Type". WIN8 comes with a GUID type, and change "Partition Table Type to MBR". Because Windows 7 only recognizes "MBR" type partition tables. After changing it, you can partition it normally and install WIN 7 normally.
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