Win2003 unrecognized USB2.0 or USB3.0 mobile HDD device Solution

Problem analysis,

System-related Setup problems

1. Do not think that as long as the motherboard has a USB connector can use the mobile hard disk, but also depends on the system support. Windows 2000, Windows XP, and the above version of the system can directly support the mobile hard drive, no need to install the driver to use, and under Windows 98 use the mobile hard disk must install the driver, otherwise the system will recognize the mobile hard disk as "Unknown USB device."

2. For some Windows 98 users, after installing the driver for the mobile hard drive, you can view the removable hard disk icon from Device Manager, but there is no corresponding letter flag in the Explorer, which is the result of improper system setup. Double-click the move hard disk icon in Device Manager and click the Properties button in the pop-up window. You can see the disconnect, removable, synchronized data transfer, and INT 13 units four options, where the "removable" system defaults to no hooks, and then restarts the computer after you check this option , you can see the new mobile hard drive letter in the Explorer.

Second, the motherboard USB interface problem

Because the motherboard USB interface problems caused by the mobile hard disk can not be used normally, mainly from the following aspects to solve.

1.USB Interface not open: on some old machines (including some brand-name machines) Although there is an external USB interface, but in the BIOS is the default shutdown, so even if the system support is not, so you should check the BIOS settings in the USB interface option is open: In the boot computer, hold down the DEL key, Enter the BIOS settings, set "on Chip USB" to "Enabled" in "Chipset Features Setup" or "Integrated peripherals", and save and restart the computer.

2. The system does not support USB interface: This kind of situation also mainly appears on some old computer. such as the author of this compatible machine, the motherboard is the flagship VISTA710V2, motherboard chipset with the Via Apollo MVP3, external USB interface card after the system is not recognized (installed Windows Me and Windows 2000 dual systems), in the Device Manager can not find " Universal Serial Bus Controller ". On the Internet, the original motherboard chipset has problems, hurriedly download the latest motherboard BIOS to refresh from the Internet, and download the Via specifically for the chipset provided by the USB driver patch, finally on my computer recognized the "Mobile storage device."

3.USB interface power supply is insufficient: the vast majority of mobile hard disk normal work required 5V voltage, 0.5A current can be directly through the motherboard USB interface supply, but some motherboard USB interface of the power supply does not reach this value, resulting in the mobile hard drive can not be recognized by the system. Fortunately, the mobile hard disk box dedicated USB cable on most of a PS/2 connector, as long as the connector plug in the motherboard PS/2 interface can be.

Third, improper operation caused the mobile hard disk can not be used

Due to improper operation of the mobile hard disk can not be used normally, mainly refers to the timing of the removal of the hard drive is not well mastered.

1. It is best to close the various applications that are running before you plug them in and do not plug them in during system startup.

2. When the mobile hard disk is connected, there will be a system recognition disk, read the process, before the end of this process is best not to do any action (recommended to the mobile hard drive less points, the more areas, the system to identify the longer time), to wait until the work of the mobile hard drive led stabilized before starting operation.

3. Use of mobile hard disk will also appear before the use, occasionally once and can not use the situation, this situation can be the first "system equipment" in the "Unknown USB device" Delete, and then unplug the mobile hard disk, and then restart the system, and then move the hard drive to connect, the fault can generally be resolved.

Four, the problem of the mobile hard disk itself

If the above causes are excluded, the removable hard drive is still not available, which is probably the problem with the mobile hard disk itself. The structure of the mobile hard disk is relatively simple, mainly by the hard disk box and notebook computer hard disk, hard disk box is generally not bad, the problem is most of the notebook computer hard disk caused. In order to avoid the hardware damage of the mobile hard disk, the following aspects should be noted in use:

1. Mobile hard disk should be used in a smooth place, do not when it is reading and writing when the move to make it vibrate.

2. In the removal of the mobile hard drive must be strictly in accordance with the procedures: when the hard drive does not read the disk, double-click the "Unplug or eject Hardware" icon in the lower-right corner of the taskbar to "stop" the use of the device in the window that appears, remove the device option from the system, and then unplug the hard drive from the host (remember not to unplug it when the hard drive is read or write). Otherwise very easy to damage the notebook computer hard disk).

3. Even in a non working state, vibration is also the biggest killer of mobile hard drives, which requires users to take effective measures to shock absorption when they go out with a mobile hard drive (some brands of mobile hard drives are doing better in this area, the equipment itself has taken the shockproof measures), it is best to put it in the box surrounded by plastic foam

Troubleshoot Windows Server 2003 without a USB disk or a removable hard drive

2 Solutions for quick fixes:

A, u disk and mobile hard disk automatic loading is the same, WINDOWS2003 specific configuration methods are as follows:
1, enter the command prompt environment (start--> operation--input cmd)
2, enter the DiskPart procedure
3, input automount enable instruction
4, OK,

The next time USB hard disk is plugged in, it can be automatically loaded like XP.

Second, right on my computer-management-Disk Management-you will see your mobile hard, right health for your mobile hard drive

Specify a letter to recognize it.

If there are special or other circumstances:

1: The power supply is insufficient, the two connectors all plug in.
2: No letter assigned. Right-click on my Computer on the desktop--manage--storage--Disk management for your mobile hard drive allocation letter.