If your HP printer showing offline Windows 10 device, it can be frustrating and prevent you from printing important documents. Fortunately, there are several steps you can take to resolve these problems. Start by checking for loose connections and making sure your printer is turned on and connected to the network. Updating drivers or restarting both the printer and computer can also help. Additionally, setting the printer as default or disabling SNMP may resolve the issue. For further troubleshooting, use HP's Print and Scan Doctor or contact their support team.