What should I do if my w7 system computer cannot read the USB flash drive?

php editor Xinyi will give you the answer: When your W7 system computer cannot read the USB flash drive, it may be due to a variety of reasons. First, you can try to re-insert the USB flash drive or change another USB interface to see if the problem can be solved. Secondly, you can check the "Universal Serial Bus Controller" option in Device Manager to make sure the driver is installed properly. In addition, you can also try to update the system patch and USB driver, or use another computer to test whether the USB flash drive is normal. If the problem persists, it is recommended that you contact a professional or manufacturer for further troubleshooting.

1. Press Win R at the same time to open the run window, enter "devmgmt.msc" and click OK

2. Right-click "Universal Serial Bus Controller", select "Scan for hardware changes", re-plug and unplug the USB device to see if it returns to normal

3. Then open the run window again, enter "regedit" and click OK

##4. Click "Hkey_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control/Class{4D36E967-E325-11ce-BFC1" -08002BE10318}", find and delete "UpperFilters" and "LowerFilters", restart the computer

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