Answer first
If a printer goes offline after a Windows update, restart the printer and computer, confirm both are on the same Wi-Fi network, clear the print queue, and check whether the printer driver or default printer changed during the update.
Open printer settings, cancel stuck jobs, confirm the correct printer is selected, and run a test print. If duplicate printer entries appear, test the online one before removing anything.
For wireless printers, confirm the computer and printer are on the same network name. For USB printers, reconnect directly to the computer and avoid unpowered hubs during testing.
Keep the printer model, Windows version, connection type, error message, and whether the printer is Wi-Fi, USB, or network shared.
Quick FAQ
Why did my printer go offline after a Windows update?
The update may change the printer driver, default printer, port, queue status, or network discovery settings.
Should I remove the printer immediately?
No. First clear the queue, restart both devices, check the selected printer, and test whether a duplicate printer entry works.