How do I manually add a printer in Windows 7?

Click the Start button, and then, on the Start menu, click Devices and Printers. Click Add a printer. In the Add Printer wizard, click Add a network, wireless or Bluetooth printer. In the list of available printers, select the one you want to use, and then click Next.

How do I manually install a USB printer?

Simply plug the USB cable from your printer into an available USB port on your PC, and turn the printer on. Select the Start button, then select Settings > Devices > Printers & scanners. Select Add a printer or scanner. Wait for it to find nearby printers, then choose the one you want to use, and select Add device.