Newly installed win8, but after pressing the "windows" key, the mail, contacts, weather, app store, etc. in the metro interface remain like this and cannot be opened.

Reinstall

The services that Metro application download depends on: Windows Update, Background Intelligent Transfer Service. If the application download fails, go to Control Panel-Administrative Tools-Services and check whether they are in the "Running" state.

Installation depends on the service: Windows Firewall (firewall). May be related to the authentication of the application. If the app installation fails, check to see if the service is in the "Running" state. If you don't want to use the firewall that comes with Windows, you can temporarily enable the firewall service during installation.