- name: Update windows host
  hosts: all
  serial: 1
  tasks:
  - block:
      - name: Check if there are missing updates
        win_updates: state=searched
        register: update_count
  - block:
      - name: Install missing updates only if at least one is missing
        win_updates:
          category_names: '*'
            #- Application
            #- Connectors
            #- DefinitionUpdates
            #- DeveloperKits
            #- FeaturePacks
            #- Guidance
            #- ServicePacks
            #- Tools
            #- UpdateRollups
            #- CriticalUpdates
            #- SecurityUpdates
          log_path: C:\Win_Template_Patch.log
        register: update_result
      - name: Reboot, if needed.
        win_reboot:
        when: update_result.reboot_required
    when: update_count.found_update_count|int >= 1