Steps:
1. Install Authentication in IIS
2. Create a new account for basic login
3. Update configs in Sitecore 10.x
+) Web.config
add key="owin:AutomaticAppStartup" value="false"
+)Disable identity server in Sitecore 10
Sitecore.Owin.Authentication.Disabler.config.example
Sitecore.Owin.Authentication.IdentityServer.Disabler.config.example
