It will appear as an icon in the menu bar. Once installed, go to Settings > General > Profiles (or Profiles & Device Management), tap on the profile labelled with your Apple ID, then press the Trust button. Read this guide to find out how you can do it. Unlock your iOS device, and if prompted, choose to trust the device.
Download the latest version of iCloud from Apple's website (not from Microsoft Store).Download the latest version of iTunes from Apple's website (not from Microsoft Store).