U disk, mobile hard disk drive letter does not display the solution

Most of the mobile hard disks and USB flash drives we use use USB interfaces and are plug and play types. We often use USB devices and we may also encounter a situation where the mobile device is not recognized, that is, the drive letter of the USB device cannot be found. In general, mobile hard disk is

The vast majority of mobile hard disks and USB flash drives we use are USB interfaces and are plug and play types. We often use USB devices and we may also encounter a situation where the mobile device is not recognized, that is, the drive letter of the USB device cannot be found.

In general mobile hard disk normal access to the computer, in My Computer or computer disk management can be seen in a new hard disk symbol, the easiest directly into my computer can see The new mobile hard disk symbol, I didn't see it, I can wait to refresh my computer and I can see it. I can also view it in my computer management.

① When faced with the mobile hard disk does not show us first check mobile hard disk data cable is connected with a computer hard drive with no moving, sometimes due not plugged in, causing the computer does not recognize mobile hard disk The situation is also more, in addition, when the USB connection of the mobile hard disk is good, we look at the host USB accepting bad, try another interface, the front can not, change the next try again. Why is the computer crashing? What should I do if the computer crashes frequently?

PS: Some computers have not connected to the motherboard interface because of the front USB interface, resulting in a lot of front USB ports are not available, so this also needs to be noted.

② ensure that when the host computer USB port is available, and the data line connection with a permanently installed hardware, mobile hard disk still can not show that we can try to unplug the interface to the host US, Insert wait to try again In a moment, I have encountered a lot of such situations. I started to access the computer and I was prompted to access the device. However, I could not see the mobile hard disk drive in my computer, and I re-plugged the results several times.

3 Get it on another computer first, if it is normal, it is your system's business. If it is not normal, it is the problem of your hard disk or hard disk USB cable. First find a good USB cable to try it, or it is not a hard disk thing, send it for repair, the general hard disk we will not repair.

If it is a problem with your own system, you can see from the device manager whether there is an abnormal icon before the mobile hard disk, such as a question mark exclamation point, etc., add new hardware, find it again, and check the computer. Whether the service item prohibits the related service, it is impossible to know if the problem is where the friend can restore the system to normal (such as: one-click restore or re-install the system), and then take the test, the general problem can be solved. There are still problems …… the last time you look at the BIOS settings or restore the BIOS directly to the factory settings, not yet, check your motherboard.

are two cases:

1, the computer itself is not a high-speed USB interface interfaces, high-speed mobile hard disk drive, even if the power can not be displayed properly mobile hard disk region; can Check the USB interface of the computer. Generally, the computer will have several USB ports. If the front effect is not good, use the rear USB as much as possible, and it is better to connect to the USB port that matches the mobile hard disk. Prompt & ldquo; printer daemon service is not running & rdquo; solution!

2, due to the removable hard disk is required, if the computer's USB port power supply shortage, as will light mobile hard disk, there will be speed, but to take power shortage, the power supply can not function properly, of course, The drive letter of the mobile hard disk will not be displayed on the computer.

Of course, the above situation is to ensure that the mobile hard disk is good. If you are not sure whether the mobile disk is good, you can use the notebook to try, because the notebook supplies power to the mobile disk by double-heading the mobile disk data cable. Generally speaking, The mobile hard disk suddenly does not recognize the disk, there are many possibilities. First, check the USB interface, try another USB interface. If there is a condition, try another computer. Here, I want to remind you that the USB interface is connected to the rear of the computer, because the USB interface on the front of the chassis may be unstable. Secondly, reinstall the mobile hard disk box, or replace a mobile hard disk box and data cable to try; finally, if you eliminate the above problems, there may be a disk failure, then you should stop trying to continue powering, if the hard disk is still under warranty, go to the warranty .

If the warranty period is exceeded and the data is not important, you can use MHDD to detect bad sectors, but do the slave disk, operate under DOS, sweep out the red and green blocks, MHDD also comes with repair Function, you can try to use the relevant mobile hard disk repair tool to repair the mobile hard disk. If it is repaired, it is recommended that this hard disk is not recommended to save important data in the future, because the hard disk may be out of order, and there is no guarantee that the data will remain in the future. Losing important data can be worth the loss.