What if Shanghai Social Security USB flash drive computer denies it?

1. What happened when the computer suddenly didn't recognize the USB flash drive?

There may be insufficient supply points. Try restarting it. This is mainly because the USB boot option in BIOS is not turned on or set correctly.

After entering the CMOS setting, there are two options in the system startup sequence: "FDD USB" and "HDD USB", which are USB startup options, so the system startup sequence should be set to USB first. But some old motherboards don't support USB startup, so you can't use USB flash drives.

Modify the registry at the beginning-when the program is running, enter regedit to enter the registry. Find the registry key HKEY _ local _ machine \ system \ currentcontrolset \ services \ u * * * Stor, change the "Start" numerical data on the right to 1 (16), and enter it again after confirmation. So you can use USB interface.

2. What if the computer doesn't recognize the USB flash drive?

Method 1: We now connect the U disk to the USB interface, and then click the Start menu on the computer desktop, and then click Run. After that, an input box will pop up, where you can enter the command of cmd, and then click OK to pop up a command prompt window, and then execute the following two commands respectively.

After input, restart the computer. After turning on the computer, click the Start menu again, click Run, and then enter devmgmt. Msc command, enter it and click OK, then click Properties in the pop-up shortcut menu, select hardware, and finally click the button of Device Manager at the bottom.

Next, open the device manager, click View at the top, click Show Hidden Devices, and double-click the universal serial bus controller to uninstall the devices with gray items and large-capacity USB displayed on them. Finally, click the right mouse button on the USB controller, and a drop-down menu will pop up. You can choose to scan and check the hardware changes, then unplug the USB flash drive and plug it in to see if it works. Method 2: Click the computer desktop start menu, click the run command, and click OK after the run box pops up. Then you can open the registry editor window, and many files will be displayed on the far left, and then you can delete the lower filter and the upper filter. At this time, unplug the U disk and plug in the USB interface to see if it can be used.

3. The computer can't recognize the device. What if the USB flash drive can't be read and displayed?

Method/step 1. Replace the u ** interface There are many U * * interfaces in the notebook, so you can't change one for this interface.

It may be a problem with the u *** interface that makes the U disk unreadable. Method/Step 2: Antivirus the USB flash drive. U disk is infected with virus, which will affect normal reading.

Turn off the security protection first, and then choose the computer management software to kill virus, but if it doesn't work, it can only be formatted, provided that there is no important information in the USB flash drive. Method/Step 3: Restart the computer 1. If you have used any external device before using the USB flash drive, reading may fail and you will not recognize the new device (USB flash drive).

Method/Step 4: Hardware Device Detection 1. Open the computer control panel, and then click Troubleshooting. 2. Then click Configure Devices under Hardware and Devices.

3. Then click Next to connect the hardware to the computer and access the device. 4. Then, the system will automatically detect what has been done to make the USB flash drive device unreadable.

5. There will be a prompt after the problem is detected, and corresponding changes can be made according to the display.

4. The solution that the computer does not display the U disk

In our daily work, we often use a USB flash drive to copy data. U disk is easy to carry and has a large storage capacity, so it is very popular with everyone.

However, when we copy the data and insert the USB flash drive into the computer, we will find that the USB flash drive is not displayed in the computer, even if we look at it carefully on the desktop, it will not help. I have encountered this situation. Recently, someone asked me how to solve the problem that the USB flash drive is not displayed when plugged into the computer.

So, what I want to share with you today is a solution that USB flash drive can't be solved by plugging in a computer. The reasons for the abnormal display of U disk icon are: 1, the motherboard is old or incompatible; 2. Run msconfig manually or modify the registry or use some software to delete some startup items, especially the startup of systray, resulting in that the network connection icon or volume icon cannot be displayed.

I forgot to pop it up once, so I pulled it out. 4. There are too many USB flash drives. This happened to a USB port. USB flash drive is not displayed. 5. The 5.USB flash drive is old, and the driver and hardware are incompatible. (installing the driver that comes with the USB flash drive can sometimes be solved. ) The solution of not displaying the USB flash drive is 1. Open the sound and audio devices in the control panel, check "Put the volume icon in the taskbar" in the volume, and click. (Similar faults can be solved by 99%) 2. If "Put the volume icon in the taskbar" is checked, it is invalid, indicating that sndvol32 is lost.

Exe, file path C:WINDOWSsystem32, you can find a sndvol32 on other computers. Or find the system CD to find sndvol32.

After the ex_ file was copied to system32, it was renamed as sndvol32. Exe 3。 If you have deleted the startup item with software or turned it off by running msconfig, you have accidentally deleted the startup volume icon.

This time, in the "Put Volume Icon in Taskbar" box, the volume icon appears, but it will not be restored after restarting and must be reset in the control panel (in this case, the network connection icon may also disappear). In this case, it is only necessary to restore the deleted item from the startup key in the registry.

Enter regedit to open the registry, and then open HKEY_LOCAL_MACHINE in turn to create a new string "Systray" (right-click Run to create it), and the key value (double-click Systray to edit it) is "c:windowssystem32Systray. Exe ",if it is win2000 system, it is" c:? winntsystem32Systray .

Exe "that's all. Of course, you can also run msconfig and check Systray.

Exe to implement. If the above methods still cannot be solved, you can consider the following method 4. First, insert the flash memory (USB flash drive) into the USB interface, then right-click the icon of My Computer in Windows, and expand Properties → Hardware → Device Manager → Disk Drive in turn to find "USB flash drive" (different brands of flash memory may have different names), and then double-click to open "USB flash drive USB flash drive".

Switch to the Policy tab, select Optimize to Improve Performance, and click OK to exit. 5. Enter regsvr32stobject in the start menu. Dll and then enter 6, upgrade the system, and put on the latest patch, update u ***, if there is an ICBC U shield, stop using it first.

7. Turn off the keyboard support of u *** mouse in the bios and turn on the device support of u *** (if the keyboard mouse is an ordinary ps/2 port). In fact, in our daily life, the USB flash drive will only be damaged if it is plugged in directly, which is also the most common way to damage the USB flash drive. Therefore, after copying the data, everyone must let the U disk exit safely and then pull it out from the USB socket of the computer.

Otherwise, you may think that the USB flash drive you bought is broken in less than a week. Today, I would like to share with you the reason why the USB flash drive does not display in the computer. I have solved the problem. I hope my article can help you.

Discarding finished.