Wifi not opening

hi I am using dell laptop of Intel(R) Core(TM) i3-4030U CPU @ 1.90GHz   1.90 GHz

My wifi option is not opening so that I cannot connect my wifi internet. I checked there is no wireless button is present in side. I used the key like fn+ wifi signal button on keyboard. Also other key button like f1  f2  but still same issue when troubleshoot it says wireless capability is turned off. please tell me how can I turned on this wireless capability. <Private data removed from public view. DELL Admin> please give me solution.