When I tried to connect WiFi it showed me that a WiFi adpater is missing. After that I attempted to download WiFi adapter drivers from Lenevo website but still it is showing that my WiFi adapter is missing..
Could this be a hardware issue or drivers issue?
There are various factors that can cause this issue. Three possibilites I could think of right now. Please check the details below.
1) Driver Issue
If it is a driver problem then you should have a yellow icon in Device Manager - "Network Controller" or "Unknown Device" with exclamation mark yellow icon. Please see illustration below.
If this is the case, you are required to download the wireless drivers from our support site http://support.lenovo.com or by clicking the link below. Please check which wireless card your machine has and then select and download the correct drivers accordingly.