We have several single-server SharePoint 2013 farms running on Windows 2008 R2. When we do monthly patching through Windows Update, non-SharePoint patches install successfully. However, all SharePoint patches ("Security Update for Microsoft SharePoint Enterprise Server 2013 (KBxxxxxxx) farm-deployment") fail TWICE with error code 80240020, and then succeed the THIRD time.
If we look at the Windows Update logs, we see this same pattern every month for SharePoint patches. This can sometimes take 3+ hours for the patches to finally succeed. This is lengthening our outages. Has anyone else seen similar behavior?