How to disable Automatic Network Printer Discovery

• Click "Start" button and click "Control Panel" menu.

• Click "Network and Internet".

• Click "Network and Sharing Center".

• Click "Change advanced sharing settings".

• Select "Turn off network discovery" Radio button and click "Save changes" button.

Reference: http://smallbusiness.chron.com/turn-off-auto-detected-printers-50195.html