LG is android. plug the usb cable to the phone into the computer. It will show a new drive letter. (e,f,g,) click on it look for your puctures folder on the device or DCIM folder which is also pictures. Select all then click copy then go to your puctures folder on Windows and right click the pictures folder on the PC and select paste. if you wish to remove them from the phone select CUT instead of Copy and then paste.
Good Luck