what should i do?

[Pritamkumar211]

i m not able to install my wifi driver in my dell inspiron 14 when installation screen apears for few seconds it says "prepairing for installing" then it dissapears .
i downloaded this driver three times from dell official site

my wifi is working but not all tym sometime it failes to connect to internet

 

[kanewolf]

If your WIFI is working any time then the driver is already installed. It probably disappears because it checks and there is nothing to install.