Hi Kemical.. i tried again installing the malwarebytes but there are no issues after running it. i tried the microsoft sites too but my phone wifi works properly and other laptop works fine with the wifi connection.
When i started my laptop it worked for an hour. It showd me all the wifi network connections and i manully connected to network and it work for an hour and again the problem started. suddenly my internet connection lost and when i clicked on dignose connection it become nonresponsive and hanged. Now there is no yellow sign on network adapter.