Solved Printer unable to connect

Hey,

I haven't needed my printer in a while, I was going to use it today but I couldn't connect it to my PC.
I get a message saying ''COM4 not available"
Never had this before, if anyone has an idea of what's going on it'd be a great help!

 

What does your arduino show up as in the device manager

 

If your using matter control and disconnect the printer without first disconnecting in the program this can happen. Unplug your printer usb close matter control. Reopen matter control and when its up then plug your printer in and try and connect