◆Error Codes Wiki

Group Policy Errors — GPO Not Applying and Event ID 1096

Warningsystem

Overview

Fix Windows Group Policy errors including policies not applying, Event ID 1096 processing failures, and gpresult troubleshooting for domain-joined computers.

Key Details

  • Group Policy Objects (GPOs) control system and user settings in Active Directory environments
  • Event ID 1096 indicates Group Policy failed to process a specific extension
  • Policies may not apply due to WMI filter failures, security filtering, or network connectivity
  • gpresult /r shows the Resultant Set of Policy (RSoP) for the current user and computer
  • Group Policy updates every 90 minutes by default (+/- 30 minutes random offset)

Common Causes

  • Domain controller unreachable due to network or DNS issues
  • WMI filter on the GPO evaluating to false for the target computer
  • Security filtering not granting the user/computer Read and Apply permissions on the GPO
  • GPO link disabled or blocked by an OU higher in the hierarchy
  • Client-side extension DLL corrupted or missing

Steps

  1. 1Force policy refresh: gpupdate /force in an elevated Command Prompt
  2. 2Check applied policies: gpresult /r (summary) or gpresult /h report.html (detailed HTML report)
  3. 3Verify domain connectivity: nltest /dsgetdc:yourdomain.com to confirm DC availability
  4. 4Check Event Viewer: Applications and Services Logs > Microsoft > Windows > GroupPolicy
  5. 5Test WMI filters: run the WQL query from the WMI filter manually in PowerShell
  6. 6Reset Group Policy: delete C:\Windows\System32\GroupPolicy and C:\Windows\System32\GroupPolicyUsers, then gpupdate /force

Tags

group-policygpoactive-directorygpresultevent-1096

More in System

windows-C000021A-status-system-process-terminatedWindows Error 0xC000021A — STATUS SYSTEM PROCESS TERMINATED
Critical
windows-C0000225-boot-configuration-errorWindows Error 0xC0000225 — Boot Configuration Error
Critical
windows-C000000F-boot-selection-failedWindows Error 0xC000000F — Boot Selection Failed
Critical
windows-80004005-unspecified-errorWindows Error 0x80004005 — Unspecified Error
Warning
windows-80070570-file-or-directory-corruptedWindows Error 0x80070570 — File or Directory Corrupted
Error
windows-system-0xc0000185Windows Error 0xC0000185 — Boot Device Inaccessible
Critical

Frequently Asked Questions

Run gpresult /r as Administrator. It shows applied and denied GPOs for both computer and user. For a detailed HTML report, use gpresult /h report.html.