Win7 fax function is not available, how to reinstall fax function

                  Problem Description The Win7 fax function cannot be used. The fax function needs to be reinstalled. The fax icon is deleted in the device and printer. It cannot be retrieved. Reinstalling the modem driver is invalid. Selecting the add device is invalid. Solution Open "Control Panel" - "Programs and Features", click "Open or close windows function" in the upper left corner, as shown in the figure:
Find "Windows Fax and Scan" in "Print and File Service", as shown in the figure :
If the option is checked at this time, remove it, and the system will prompt to restart. After restarting, check it in the same location to re-install the fax function. If the option is not checked at this time, first check it, then click OK, then go to the same location to remove it, follow the system prompts to restart, and then re-check to the location to re-install the fax function.