diff --git a/docs/docsite/rst/user_guide/become.rst b/docs/docsite/rst/user_guide/become.rst
index 02556550c5b..d7068a2e894 100644
--- a/docs/docsite/rst/user_guide/become.rst
+++ b/docs/docsite/rst/user_guide/become.rst
@@ -693,6 +693,8 @@ Be aware of the following limitations with ``become`` on Windows:
   ``ansible_winrm_transport`` was either ``basic`` or ``credssp``. This
   restriction has been lifted since the 2.4 release of Ansible for all hosts
   except Windows Server 2008 (non R2 version).
+  
+* The Secondary Logon service ``seclogon`` must be running to use ``ansible_become_method: runas``
 
 .. seealso::
 
diff --git a/lib/ansible/plugins/become/runas.py b/lib/ansible/plugins/become/runas.py
index ab191577acb..9607932fe0c 100644
--- a/lib/ansible/plugins/become/runas.py
+++ b/lib/ansible/plugins/become/runas.py
@@ -55,6 +55,7 @@ DOCUMENTATION = """
     notes:
         - runas is really implemented in the powershell module handler and as such can only be used with winrm connections.
         - This plugin ignores the 'become_exe' setting as it uses an API and not an executable.
+        - The Secondary Logon service (seclogon) must be running to use runas
 """
 
 from ansible.plugins.become import BecomeBase