Did you try searching for the answer? It took me 3 seconds to find this - https://social.technet.microsoft.com/Forums/en-US/a56e9874-49e5-41ad-810d-325105279cef/windows-10-safe-mode-with-networking-has-no-wifi?forum=win10itpronetworking
Also, note this forum is for questions related to Microsoft Certifications