With reference to the link http

/answers.microsoft.com/en-us/windows/forum/windows_7-networking/function-f3-no-longer-turns-on-the-wireless-on-my/8f6af5e7-bbda-436d-b124-7a877ca257be, solution for this issue is to delete the existing network profiles. You can refer the link
http
/www.tp-link.com/en/article/?faqid=281 on how to delete the network profiles. Then try to turn on WiFi.