The computer cannot automatically boot from the hard disk and can only be booted from the PE made of U disk. Why
1. The notebook cannot boot from the hard disk and can only be booted from the U disk. Reason: It may be that the active partition is not set after partitioning the hard disk. Maybe the partition table is damaged. Maybe the bios is not set properly. Expansion: Solution to reason three, after installing the system. Restart and enter bios.
2. The USB disk is damaged. The BIOS is not set to boot from a USB flash drive. What is the reason why the hard disk of a desktop computer does not start? When a desktop computer starts, the system of the hard disk runs. If the hard disk system is damaged, it cannot start and the system needs to be reinstalled.
3. Under normal circumstances, after the system is installed on the USB disk, it will boot from the hard disk by default. If it cannot boot from the hard disk, there are several reasons:\x0d\x0aThe active partition is not activated, you can enter PE, use the partition tool (diskgenius) to activate the primary partition.
4. When installing the system on the computer, it is recommended to use the pure version of the ghost system from the computer company. Other versions of the system have many problems and are not recommended.
5. The Lenovo all-in-one machine can use the hard disk to start the computer through the Dabaicai U disk. However, the motherboard is set to hard disk startup but cannot start. There is something wrong with the boot or partition table. Solution: Create a bootable USB flash drive on another computer (the USB flash drive needs to be formatted, and be careful to back up the data).
Why the computer cannot boot after installing the hard drive
1. Update BIOS: If the computer BIOS version is too old, the solid-state drive may not start normally. You can try updating your computer's BIOS version to support solid-state drives. Check the power supply problem: Check whether the power supply is normal. If the power supply is insufficient or there is a problem with the power cord, the computer may not start normally.
2. The reason why the computer cannot be turned on after installing the solid-state drive is as follows: The notebook power supply is insufficient. This situation is caused by excessive use of the notebook or excessive use of battery power on standby for a long time. There is no response when turning on the computer. This situation is usually caused by loose hardware or water in the notebook.
3. If the computer cannot be turned on after installing the SSD, it may be caused by hardware compatibility, BIOS settings, poor connection, etc.
4. ① The most common troubleshooting methods for computer failure to start up. The most common causes of computer failure to start up include: the computer host power cord is not connected properly, the monitor switch is not turned on, and the monitor power supply or monitor data cable is not in good contact.
5. Insufficient power supply. Two hard drives will load the power supply. Generally, a hard drive is 12W. If the power supply itself is not sufficient, adding more hard drives will cause instability and make the computer unable to boot. Wrong startup sequence. If you can see the screen display but cannot enter the system, this is the problem.
What to do if the hard disk cannot be started
Solution: If the hard disk cannot be recognized and cannot be booted even after inserting a boot floppy disk or CD, the hard disk is damaged and needs to be replaced. If it can boot, enter the system, find the backup file, and restore the backup. If it cannot be restored, just reinstall the system.
Solution: Try to re-plug and unplug the hard disk data cable and power cable, or replace the power connector and data cable interface. The motherboard has turned off the SATA interface, but the computer uses a SATA hard drive, which causes the computer to not find the hard drive. Solution: Turn on the computer and press the DEL key to enter the BIOS, and open the SATA interface in the BIOS.
Enter Disk Manager to see if there is a hard disk. If so, repartition and format it. If you only have one hard drive, you can make a PE of the USB flash drive on another computer and view it under the PE. If there is no hard disk, go into the device manager and see if the disk has this hard disk. If not, the hard drive is completely broken.
In this case, there is a problem with the hard disk boot. The solution is as follows. Booting from the local disk using Laomaotiao failed. It is definitely a boot problem. Then go through Laomaojia→Start→Programs→System Maintenance→System Boot to automatically repair.
Whether the disk is damaged. Sometimes some tracks are damaged. You need to use disk tools to check and mark the bad sectors of the disk. Then format and reinstall the system. If it doesn't work, replace the hard drive.
The computer cannot recognize the hard drive with too large capacity. The hard disk is damaged or the boot record is damaged. System files are corrupted. The hard drive has bad sectors. Solution: If the computer cannot recognize it, the host motherboard is lagging behind and the host motherboard needs to be replaced.
The above is the detailed content of What to do if the computer cannot boot from the hard drive. For more information, please follow other related articles on the PHP Chinese website!

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