Unless your PC has a Wi-Fi adapter, you won't be able to "find" Wi-Fi connections. Laptops generally have them hardwired in, but 90% of desktops do not, & those usually only have them because someone installed a Wi-Fi expansion card.
To know whether this is a "you don't have it" issue, or some other issue, though, we need a little more info on your PC: make/model (if a prebuilt) or full CPU/motherboard/expansion cards specs (if custom-built).