When you connect to a new Wi-Fi network it is added and stored in a list of profiles. Over a period of time the list can become quite large. The following instructions guide you through the process of Windows 10 Delete WiFi profile in simple way

1. Click the Network icon on the lower right corner of your screen. Click Network settings;

2. Click Manage Wi-Fi settings;

3. Under Manage known networks, click the network you want to delete;

4. Click Forget. The wireless network profile is deleted;

NOTE: You can also type netsh wlan show profiles in the Command Prompt to manage and delete wireless network profiles.