Windows Event Log Analyzer

Windows Event Log Analyzer helps you instantly understand what a Windows event log entry means, what commonly causes it, and what to check next. Paste any event directly from Event Viewer, PowerShell, or your SIEM - and get a structured analysis in seconds.

Designed for system administrators and IT professionals who need fast, practical answers without searching through documentation.

Paste an event, get a plain-English explanation and its common causes.

Server lookup, rate limited

Your pasted event is sent to OpenAI to generate the explanation. Remove server names, user names and IP addresses first if they are sensitive.

How to use the Event Log Analyzer

Method 1 - Copy from Event Viewer

  1. Press Win + R, type eventvwr.msc, and press Enter to open Event Viewer.
  2. Navigate to the log - for example Windows Logs → System or Windows Logs → Application.
  3. Click on any event in the list to select it.
  4. Right-click the event → Copy → Copy Details as Text.
  5. Paste the copied text into the input field above and click Analyze Event.

Method 2 - Export from PowerShell

To retrieve the most recent event from a specific log:

Get-WinEvent -LogName System -MaxEvents 1 | Format-List *

To filter by a specific Event ID - for example, Event ID 7034:

Get-WinEvent -FilterHashtable @{LogName='System'; Id=7034} -MaxEvents 1 | Format-List *

Copy the output and paste it into the analyzer above.

You can also paste event data from monitoring tools like Zabbix, Splunk, or Graylog - the analyzer accepts any text format and does not require a specific structure.

Select your preferred Response Language from the dropdown before running the analysis. The Auto-detect option will match the language of the event description automatically.


What the analyzer returns

Each analysis includes four parts:

  • What happened - a plain-language summary of the event in one sentence
  • Likely cause - the most common reasons this event appears in real environments
  • Recommended actions - concrete steps to investigate or resolve the issue, including relevant PowerShell or CMD commands
  • Severity assessment - whether the event requires immediate attention or can be addressed during normal maintenance

Understanding Windows Event Logs

Windows records system activity in three primary logs: System, Application, and Security. Each event has an Event ID that identifies the type of activity, a Source that identifies the component that generated it, and a Level that indicates severity - Information, Warning, or Error.

Event IDs are not always self-explanatory. An Event ID 7034 from Service Control Manager means a service crashed unexpectedly. An Event ID 4625 in the Security log means a failed logon attempt. Knowing what an ID means and what caused it requires either experience or research - this tool replaces that lookup with an instant analysis.


Example

Input - paste the full event text from Event Viewer:

Log Name:      System
Source:        Service Control Manager
Date:          3/20/2026 09:14:33 AM
Event ID:      7034
Task Category: None
Level:         Error
Description:
The Print Spooler service terminated unexpectedly. It has done this 1 time(s).

Output - analysis result:

What happened:
The Windows Print Spooler service crashed unexpectedly.

Likely cause:
The service may have been terminated due to a memory error, a corrupted print
driver, or a conflicting process accessing the spooler queue.

Recommended actions:
1. Restart the service:
   Restart-Service -Name Spooler

2. If the service crashes again, check for driver issues:
   printui /s /t2

3. Clear the spooler queue folder:
   C:\Windows\System32\spool\PRINTERS

Severity assessment:
Medium - does not affect system stability, but users will be unable to print
until the service is restored.

Common Windows Event IDs

A quick reference for the most frequently encountered Event IDs across System and Security logs.

Event IDLogLevelDescription
41SystemCriticalSystem rebooted without a clean shutdown
1074SystemInformationShutdown or restart initiated by a process or user
6005SystemInformationEvent log service started - indicates system boot
6006SystemInformationEvent log service stopped - indicates clean shutdown
6008SystemErrorUnexpected shutdown - previous shutdown was not clean
7034SystemErrorA service terminated unexpectedly
7036SystemInformationA service entered the running or stopped state
7045SystemInformationA new service was installed
4624SecurityAudit SuccessSuccessful account logon
4625SecurityAudit FailureFailed account logon attempt
4648SecurityAuditLogon attempt using explicit credentials
4720SecurityAuditA user account was created
4740SecurityAuditA user account was locked out
4776SecurityAuditDomain controller validated credentials

Paste any of these into the analyzer above to get a full explanation.


FAQ

What types of events can I analyze?

Any Windows event log entry - System, Application, Security, Setup, or custom application logs. The tool works with both Windows Server and Windows desktop events.
Do I need the full event text?

The more context you provide, the better the analysis. Pasting the full event including Event ID, Source, and Description gives the most accurate results. A partial entry with just the description also works.
Why do results vary for the same event?

AI-generated responses may vary slightly between requests. The core analysis - likely cause and recommended actions - remains consistent, but wording may differ.
Is my data sent anywhere?

Yes. The event text is sent from our server to OpenAI to generate the explanation, together with your choice of response language. zaur.it does not store it. Under OpenAI's API data policy it is not used for training and is kept for up to 30 days in abuse-monitoring logs. Remove server names, user names and IP addresses first if they are sensitive, and never paste passwords or credentials. Details are in the privacy policy.
What are Windows Event Log levels?

Each event is assigned a severity level:

  • Information - routine activity, no action required
  • Warning - something unexpected occurred but the system recovered
  • Error - a significant problem that may require attention
  • Critical - a serious failure that requires immediate action
  • Audit Success / Failure - used in the Security log for logon and access events

Where are Event Logs stored?

Windows Event Logs are stored as .evtx files in:
C:\Windows\System32\winevt\Logs
The main log files are:

  • System.evtx - OS and driver events
  • Application.evtx - application and service events
  • Security.evtx - logon, access, and audit events

You can open these files directly in Event Viewer or query them with PowerShell using Get-WinEvent.

The analyzer returns an error. What should I do?

This usually means a temporary issue with the analysis service. Wait a few seconds and try again. If the problem persists, try reloading the page.

What types of events can I analyze? Any Windows event log entry - System, Application, Security, Setup, or custom application logs. The tool works with both Windows Server and Windows desktop events.

Do I need to paste the full event or just the description? The more context you provide, the better the analysis. Pasting the full event including Event ID, Source, and Description gives the most accurate results. A partial entry with just the description also works.

Why do I sometimes get different answers for the same event? AI-generated responses may vary slightly between requests. The core analysis - likely cause and recommended actions - remains consistent, but wording may differ.

Is my data sent anywhere? Yes. The event text is sent from our server to OpenAI to generate the explanation, together with your choice of response language. zaur.it does not store it. Under OpenAI's API data policy it is not used for training and is kept for up to 30 days in abuse-monitoring logs. Remove server names, user names and IP addresses first if they are sensitive, and never paste passwords or credentials. Details are in the privacy policy.

The analyzer returns an error. What should I do? This usually means a temporary issue with the analysis service. Wait a few seconds and try again. If the problem persists, try reloading the page.


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