My laptop can’t connect to WiFi when all other devices can

Phones, PlayStation other laptops, iPads and kindles work on the WiFi. My laptop won’t connect. It won’t even connect if I try to pair it with my phones 4g, which has always worked before. It’s always worked with my WiFi. Scanning it for viruses now.

The laptop is about 5 years old and works just fine usually. I used WiFi on it about a month ago. What do I do?