电脑提示窗无法识别的USB设备，电脑无法识别USB解决方法（Computer prompt window unrecognized USB device, computer cannot recognize USB solution）
Computer prompt window "unrecognized USB device", computer cannot recognize USB solution
[solutions]:
Scenario 1:
1, click start, right-click My computer, select management, and select the device manager in the pop-up window.
2. Double click the "universal serial bus controller" project to unload all of the following grey items and USB large capacity storage devices,
3, right click the "universal serial bus controller" project, pop-up drop-down menu, select "scan, check the hardware changes.".
4 unplug the USB device and plug it in again. Is the attempt recognizable?.
Scenario two:
1, refer to the above steps to find the "universal serial bus controller", open, find the "USB Root Hub" project, right-click the property open.
2, open the properties window, switch to the power management tab, remove the "allow the computer to shut down this device to save power", click the OK button (in turn, each USB Root Hub properties to modify)
3, after the device is complete, restart the computer to try.
4, or if not, you can uninstall USB Root Hub,
5, restart after uninstall. Plug in your USB device and try again.
Scenario three:
1, click start, click Run commands in the open box type "regedit" command, click "OK" button in the pop-up in the registry editor, according to the path, in order to open.
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{4D36E 967-E325-11CE-BFC1-08002BE10318}
2, in the right window, delete the "UpperFilters" and "LowerFilters" key values, delete, restart the computer and plug in your USB device.
[Win7 solutions]
[problem description]:
The USB device is not recognized
密码锁怎么改密码[solutions]:
Scenario 1:
1, click start, right-click the computer, select management, and select the device manager in the pop-up window.
2. Double click the "universal serial bus controller" project to unload all of the following grey items and USB large capacity storage devices,
3, right click the "universal serial bus controller" project, pop-up drop-down menu, select "scan, check the hardware changes.".
qqmima4 unplug the USB device and plug it in again. Is the attempt recognizable?.
左大建Scenario two:
1, refer to the above steps to find the "universal serial bus controller", open, find the "USB Root Hub" project, right-click the property open.
五险一金指的是哪五险哪一金
2, open the properties window, switch to the power management tab, remove the "allow the computer to shut down this device to save power", click the OK button (in turn, each USB Root Hub properties to modify)
3, after the device is complete, restart the computer to try.
4, or if not, you can uninstall USB Root Hub奥力给 的意思
5, restart after uninstall. Plug in your USB device and try again.
Scenario three:
1, click start, click Run commands in the open box type "regedit" command, click "OK" button in the pop-up in the registry editor, according to the path, in order to open.
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{4D36E 967-E325-11CE-BFC1-08002BE10318}
2, in the right window, delete the "UpperFilters" and "LowerFilters" key values, delete, restart the computer and plug in your USB device.
豪华车品牌
The computer cannot recognize the USB fault analysis solution.