Device previously added not showing up on PC

What kind of device you're trying to connect to your computer?

 

Most likely there is some kind of a sign that should show you your device is alive – a small light, a simple beep or another sound. Also, if you are using the USB you should hear connect/disconnect sound from your computer when connecting a device. Also, try to restart your computer with device plugged in.

 

First of all, check the cables and try to use another port to connect the device to the computer. If that doesn't work, maybe your device doesn't support that kind of connection or is broken.

 

Best regards,

Drake Vivian