Run perfmon /report to generate a system health report in Windows, which provides a detailed diagnostic of system health; 1. Open Run with Windows R, type perfmon /report, and press Enter; 2. Allow data collection by approving the UAC prompt and waiting 60–120 seconds for the System Diagnostics Report to gather hardware and software configurations, performance metrics, and event logs; 3. Review the completed report to check the System Stability Index, resource usage, errors, warnings, and recommendations; 4. Optionally save the report as an HTML file via File > Save As for later use or sharing; this built-in tool is available on Windows 10, 11, and Server editions, requires administrator rights, and is ideal for diagnosing performance issues or crashes without third-party software.
Generating a system health report in Windows is a useful way to diagnose performance issues, check system stability, and review recent problems. Windows includes a built-in tool called Performance Monitor that can generate a comprehensive system health report. Here's how to do it:

1. Open the Performance Monitor
This tool is part of Windows Administrative Tools and doesn't require third-party software.
- Press Windows R to open the Run dialog.
- Type
perfmon /report
and press Enter.- Note: Type it exactly as shown — with a space after
perfmon
and before/report
.
- Note: Type it exactly as shown — with a space after
?? This command launches the System Diagnostics Report, which collects real-time data and may take 60–120 seconds to complete.
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2. Allow Data Collection
When you run the command:
- A User Account Control (UAC) prompt may appear — click Yes.
- A new window titled System Diagnostics Report will open.
- Windows begins collecting information about:
- Hardware configuration
- Software configuration
- System performance (CPU, disk, network, memory usage)
- Running processes and services
- Event log errors and warnings
Wait for the progress bar to finish. Don’t close the window.

3. Review the System Health Report
Once complete, the report will display:
- System Stability Index (a score from 1–10; higher is better)
- Detected warnings and errors
- Resource-heavy processes
- Disk and memory bottlenecks
- Recent system crashes or application failures
You can scroll through sections like:
- System Information
- Reliability History
- Resource Utilization
- Warnings & Recommendations
? Tip: Use Ctrl F to search for keywords like "error", "failed", or "warning" to quickly spot issues.
4. Save or Share the Report (Optional)
The report is temporary by default. To keep it:
- Click File > Save as
- Choose a location and save it as an
.html
file - You can open it later in any web browser or share it for troubleshooting
Notes and Tips
- Available on Windows 10, 11, and Windows Server (Pro and higher editions)
- Requires administrator privileges
- Best used when experiencing slowdowns, crashes, or boot problems
- If
perfmon /report
doesn’t work, ensure the Performance Logs and Alerts service is running (rarely disabled)
This built-in diagnostic is fast, detailed, and doesn’t require downloads. It’s a great first step before diving into manual troubleshooting.
Basically, just run perfmon /report
, wait a couple minutes, and review what Windows tells you.
The above is the detailed content of How to generate a system health report in Windows. For more information, please follow other related articles on the PHP Chinese website!

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