Once I re-insert the USB flash drive after Win7 is safely uninstalled, I found that Win 7 can no longer recognize this USB flash drive. Then you have to restart your computer to recognize it again. What is the reason? Here's how to solve this problem:
First click on the Windows 7 desktop mouse and click on "Computer"; then select “Properties&rdquo ; Click on the “Device Manager” in the top left corner. In the pop-up “Device Manager” window, click on “General Serial Bus Control” and there will be a lot of “USB Root Hub” devices list. , then right-click each "USB Root Hub", select “Disable” menu, then “Enable”.
By doing this once every "USB Root Hub", Windows 7 can recognize the USB drive again without restarting.
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