Summary update

Author: v-tappelgate

support/windows-server/group-policy/applying-group-policy-troubleshooting-guidance.md

@@ -18,12 +18,15 @@ appliesto:
 
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-This guide provides the fundamental concepts used to troubleshoot Group Policy. You'll learn:
+## Summary
 
-- How to locate new troubleshooting information.
-- How to use the Event Viewer to filter specific Group Policy information.
-- How to read and interpret event data.
-- Correct methods for locating the point of failure.
+When Group Policy settings don't apply as expected, the interactions between settings and the complexity of your topology can make troubleshooting a challenge. This article provides fundamental troubleshooting concepts and step-by-step guidance to help you diagnose Group Policy application issues in your Windows Server environment. This guidance helps you perform the following tasks:
+
+  Read and interpret Group Policy event logs.
+  Collect diagnostic information effectively, and use that information to isolate the root cause of your issue.
+  Identify and fix common issues.
+
+Before you begin, make sure that you have administrative access to the affected computers and domain controllers.
 
 ## Troubleshooting checklist