HP Printers - Windows Update Error 'Null Fax' or '0x80070490'

This document is for HP printers and computers with Windows 10.

Windows Update reports a problem and lists your printer name with any combination of the following error messages:

To resolve the error, remove the unknown device from the Printers list in Device Manager.

1. Search Windows for device manager, then click Device Manager in the list of results.
2. Click Printers.
3. Right-click Unknown device, then select Uninstall to remove it.
4. Click Retry in the Windows Update window to install the updates.