Symptom Description:
1, insert U disk, you can not see the U disk icon, but the explorer can also see the U disk, and access to files
2, U disk on other machines can also be used
3, in the U disk Letter Point pop-up, also can not bounce out, in the Control panel-system-Hardware in the U disk properties point stop using, also can not eject, the hint is in use.
Solution Rollup:
1. Open Control Panel from the Start menu, double-click Sound and Audio Devices to open the sound Properties settings panel, check the volume, put the volume icon in the taskbar, and then "OK" to save the settings, and you can see the small horn and U disk icons at the same time.
But that doesn't mean you're done, and maybe you're going to have the same situation after you reboot, so we're going to do the following:
Locate the file C:windowssystem32systray.exe (this is the taskbar file), double-click, select "Create Shortcut
Right-click the shortcut you created, and select Copy.
Open Start-menu-Programs-Start, right-click Startup, select Open, and click
Right-click in the Open Startup folder, and paste the shortcut you just created into the startup group.
2. If the volume icon into the taskbar, tick, display invalid, and prompted the loss of Sndvol32.exe, you can find a sndvol32.exe on other machines (file path c:windowssystem32), can also find a system to find a CD-ROM sndvol32.ex_ After the file is copied to System32, rename to Sndvol32.exe.
3. Open "My Computer", right click on the disk character--Properties--hardware--Properties--policy--Enable write caching.
4. "Start"-"Run", enter "Services.msc" and return to the service manager. Locate the SSDP Discovery service, double-click it, and then stop the service, set the startup type to disabled, and then confirm the reboot.
5. Through the "Add/Remove Hardware" method provided in the Windows 2000 operating system to achieve the goal, the following steps are detailed:
Click select start → settings → control Panel on the system desktop.
In the window that appears, double-click the Add/Remove Hardware icon, and then click Next in the Add/Remove Hardware wizard window that appears.
Then select the Remove/Unplug device option in the window that appears, and then click the Next button.
Select the "Unplug/Eject Device" option in the pop-up window and click the Next button.
In the Hardware Device box, select the "USB Mass Storage Device" Item and click the Next button.
Then select the "USB Mass Storage Device" Item and click the Next button.
Finally, click the Finish button.
7. First plug the Flash memory into the USB interface, and then in Windows 2000/xp the right mouse button click on the "My Computer" icon, expand "properties → hardware → Device Manager → disk drive" to find "USB Flash Drive USB Device" ( The flash name for different brands may be different, and then double-click it to open the USB flash Drive USB Device Properties dialog box. Switch to the Policy tab, select optimize for quick Delete, and click OK to exit. Do not pay attention to the system tray in the "safe removal of hardware" icon, as long as the flash memory does not read and write operations (that is, flash light is not flashing), you can directly remove the flash memory from the USB interface.
8. Enter regsvr32 stobject.dll in run on the Start menu and return to
9. Disable USB mouse and keyboard support in BIOS, turn on USB controller function
10. Upgrade the system to XP or 2003, and put on the latest patches, update USB-related device drivers, if you have ICBC U shield and so on, first stop to try.
11. The motherboard is older and incompatible, it is recommended to upgrade the motherboard BIOS.