Why Usb Port Not Working When Switch On Computer Hp Dc5700
Chosen Solution Why usb port not working when switch on computer Hi @joyfaya What OS is installed in the PC, Win7, Win 8.1, Win 10 etc? Plug in a mobile phone or a USB mouse into the USB port (is it only 1 or all of them?) and check if the USB port is supplying power i.e. the phone starts to charge or the laser light in the mouse turns on....