The Processing of Group Policy Failed

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This guide will show you how to troubleshoot and fix the most common ‘Group Policy processing failed…‘ errors in an Active Directory environment.

Common Causes of GPO Processing Errors

The most likely cause of new GPO settings not being applied to a domain computer is a Group Policy processing error. On such a computer, try using the command to force the GPO settings to be updated:

gpupdate /force

How Group Policy Processing Works

Below we will cover how Group Policy is processed in Active Directory (it’s important to know this before troubleshooting Group Policy errors).

Group Policy is applied in the following order (LSDOU):

• Local Group Policy
• Site
• Domain
• OUs (from top-level to child OUs)

Policies are processed by the client during:

• During computer startup (computer policies)
• When the user log on (user policies)
• Periodic background refresh

During processing, the client:

• Locates a DC
• Accesses SYSVOL to read GPO files (including gpt.ini)
• Applies policies using Client-Side Extensions (CSE)

Group Policy processing depends on several critical components:

• DNS resolution (to locate domain controllers)
• Network connectivity
• SYSVOL availability (DFS Replication)
• AD replication
• Kerberos authentication and time synchronization

In case any of these components fail, you may face errors during Group Policy processing.

Basic Troubleshooting Step

Before you start analyzing specific errors, we recommend you to generate Group Policy Result report:

gpresult /h report.html

This report will show you which policies are applied. It also helps identify where the processing fails.

For a quick console output without generating a file, use:

gpresult /r

Using PowerShell to check applied GPOs

To check applied GPOs for current computer, run the following command:

Get-GPResultantSetOfPolicy -Computer $env:COMPUTERNAME -ReportType HTML -Path "C:\gpreport.html"

Check the Group Policy Operational Log

This log contains detailed info about Group Policy processing and often provides more useful diagnostics than the System log alone. You need to review recent warning and error events to identify the exact policy extension/processing stage that failed. Go to Event Viewer → Applications and Services Logs → Microsoft → Windows → GroupPolicy → Operational.

Events and their IDs

These are the following events and their IDs:

Event ID 1058

Windows failed to read the gpt.ini file from a DC (Event ID 1058)

Event ID 1129

Lack of network connectivity to a domain controller (Event ID 1129)

Event ID 1030

Windows cannot retrieve new Group Policy settings for this user or computer (ID 1030)

Windows Can’t Read GPT.INI File when Processing GPO: Event ID 1058

The full description of Event ID 1058 can be found below:

User policy could not be updated successfully.

The processing of Group Policy failed. Windows attempted to read the file \\domain.local\SysVol\domain.local\Policies\{Policy_GUID}\gpt.ini from a domain controller and was not successful. Group Policy settings may not be applied until this event is resolved.

This issue may be transient and could be caused by one or more of the following:

• Name resolution/network connectivity issues with the DC
• DFS Replication (DFSR) latency/SYSVOL replication issues between DCs
• The DFS client service is disabled/not functioning properly
• Incorrect NTFS/share permissions on the SYSVOL folder/GPO files
• SMB access issues (firewall rules, SMB signing, or network restrictions)
• Kerberos authentication issues (for example, due to time sync issues)
• AD replication problems affecting GPO consistency

SYSVOL is replicated using DFS Replication (DFSR) in modern AD environments (not File Replication Service).

This error requires you to check that the gpt.ini file exists on your Logon Server DC and is not corrupted.

Check your logon domain controller name:

systeminfo | find "Logon Server"

In this example, your DC name is dc01.

Check if your DC and DNS service are healthy

Use the nslookup and ping commands to check if your DC and DNS service are healthy. Make sure both commands return a successful response:

ping dc01

nslookup dc01

Reset the DNS resolver cache on the affected computer:

ipconfig /flushdns

Check Domain Controller availability

Check DC availability:

nltest /dsgetdc:yourdomain.com

1. Check that you can open the Sysvol and Netlogon shared folders on this DC:
   Press Win +R, type \\dc01\SysVol and hit Enter.
   Now verify that the command returns the folder contents without errors:
   dir “\dc01\SYSVOL\theitbros.local\Policies”
   

   

2. Copy the Policy GUID from the error. Make sure that the file \\dc01\SysVol\theitbros.local\Policies\{Policy_GUID}\gpt.ini file exists on a domain controller. If the gpt.ini file is missing, the GPO is most likely corrupt. Do not manually delete GPO folders from SYSVOL unless you understand the replication state. Instead, you need to verify DFS Replication health and restore the GPO using proper backup/replication recovery.
   If SYSVOL contents appear inconsistent between DCs, you should check DFS Replication health with the command:
   dcdiag /test:DFSREvent
   The following command shows whether DFS Replication is currently processing updates:
   dfsrdiag replicationstate
   Hint. If the policy files are missing on all domain controllers, restore the GPO from the AD backup.
3. Check the resulting NTFS permissions on the gpt.ini file. Your computer and/or user account must have at least Read+Execute permissions. If not, fix the GPO permissions. You must ensure that the client can access the SYSVOL share using SMB (check if firewall/network policies aren’t blocking access).

Update the GPO Settings

Now try to update the GPO settings using the gpupdate /force command.

Group Policy Processing Failed Due to Lack of Network Connectivity: Event ID 1129

Another common GPO error has an event ID 1129:

The processing of Group Policy failed because the lack of network connectivity to a domain controller. This may be a transient condition.

Check the network connectivity to your DC:

ping yourdomain.name

nltest /dsgetdc:yourdomain.com

Then check the LDAP connectivity to a DC (the command should return TcpTestSucceeded : True):

Test-NetConnection DC01 -port 389

Use port 636 instead of 389 if LDAPS is enabled on a domain controller.

Run the ldp.exe tool on a client, select Connection, enter a DC name, and click Connect. If the connection fails, it means that the DC is offline or the connection is blocked by a firewall.

GPO processing error only occurs during Windows start up

If the GPO processing error only occurs when Windows starts up, it probably means that the computer didn’t have time to initialize the network before the applying GPOs. This often involves configuring a policy that forces the computer to wait for the full network connectivity before logging on and applying Group Policies.

1. Open the Group Policy Management Console (gpmc.msc), edit the GPO linked to the Active Directory OU with computers, or create a new one;
2. Go to Computer Configuration > Administrative Templates > System > Logon;
3. Enable the policy Always wait for the network at computer startup and logon setting.
   By default, Windows uses Fast Logon Optimization, which allows users to sign in before the network is fully initialized. Note that in some environments this can cause Group Policy processing failures during startup.
   

   

For some network card drivers that ignore this policy, it is recommended to set the following registry option:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]

“GpNetworkStartTimeoutPolicyValue”=dword:0000003c

This parameter adds a start-up delay of 60 seconds (3C in HEX).

Failed to Retrieve New Group Policy Settings: Event ID 1030

Here is the error description for Event ID 1030:

The processing of Group Policy failed. Windows attempted to retrieve new Group Policy settings for this user or computer.

Don’t forget to verify if the LDAP ports are accessible from the client:

• TCP/UDP 389 (LDAP)
• TCP 636 (LDAPS)

You can diagnose Event ID 1030 using the following command (just check if LDAP ports are accessible):

Test-NetConnection DC01 -Port 389
Test-NetConnection DC01 -Port 636

Try to check the Active Directory replication status:

repadmin /replsummary

Now run full DC diagnostics:

dcdiag /a /q

It’s important to mention that Event ID 1030 often appears together with Event ID 1058. Event ID 1030 is frequently a secondary symptom of SYSVOL access, DFS Replication, or DNS issues that also generate Event ID 1058.

The Processing of Group Policy Failed: Windows Could Not Resolve the Computer Name: Event ID 1055

Another common error when applying Group Policy is the Event ID 1055:

The processing of Group Policy failed. Windows could not resolve the computer name. This could be caused by one or more of the following:
a) Name Resolution failure on the current domain controller.
b) Active Directory Replication Latency (an account created on another domain controller has not replicated to the current domain controller).

Check your computer name:

hostname

Now verify that DNS resolution works correctly. You need to check if the computer name and AD domain can be resolved:

nslookup computername
nslookup yourdomain.com

You should also check if the machine is using the correct Active Directory DNS servers:

ipconfig /all

Don’t forget to ensure that only internal AD DNS servers are configured on the network adapter.

Check that this computer account is not disabled in Active Directory (use the Active Directory Users and Computers snap-in to find the computer account).

Then check and reset (if necessary) the secure channel between this workstation and the domain:

Test-ComputerSecureChannel -Verbose

nltest /sc_verify:yourdomain.name

Windows Can’t Apply Registry-Based Policy Settings from LocalGPO: Event ID 1096

The error in GPO processing with EventID 1096 has the following description:

Windows could not apply the registry-based policy settings for the Group Policy object LocalGPO.

Recreate registry.pol file

Usually, this means that the registry.pol file containing local Group Policy settings is damaged.

1. Go to the %windir%\System32\GroupPolicy\Machine folder
2. Rename the Registry.pol to Registry.pol_bak
   

   

3. Then run the gpupdate /force command to recreate the file.
   If the issue persists, check whether the User Registry.pol file is also corrupted:
   %windir%\System32\GroupPolicy\User

Most Common Root Causes

Keep in mind that in real-world environments, most Group Policy processing failures are caused by:

• Incorrect DNS config
• SYSVOL/DFSR replication problems
• Network connectivity issues to DCs
• Broken secure channel between client and domain
• Time sync problems affecting Kerberos authentication

Quick GPO Troubleshooting Checklist

• Verify DNS resolution.
• Verify DC connectivity.
• Check SYSVOL accessibility.
• Run gpresult.
• Review GroupPolicy Operational log.
• Verify LDAP connectivity.
• Check DFS Replication health.
• Verify AD replication.
• Check secure channel status.
• Run gpupdate /force.