The Hidden Windows 11 Tool That Solves Your Biggest PC Problems

Windows 11 is a modern interface and faster version of Microsoft’s operating system. However, it is like any other advanced software which occasionally encounters frustrating issues such as slow performance, crashes, driver conflicts, or unknown errors.

While many windows users directly search for solutions on Google or reset their PCs in frustration, but they do not know that Microsoft offers a powerful hidden windows 11 tool specifically designed to diagnose and fix common problems such as Microsoft Diagnostic Tool, also known as MSDT. With the Windows updates and security improvements in 2025, a new and easier tool called Windows Reliability Monitor and Performance Monitor which combines system checks with smart to fix problems more easily.

This guide will explain how to use hidden windows 11 tool to fix the root causes of system instability, app crashes, and performance issues in the Windows 11 operating system.

What Is Windows Reliability Monitor?

Windows Reliability Monitor is a built-in diagnostic tool that provides a graphical timeline of system stability and maintains a healthy and reliable Windows experience. Inside Windows Reliability Monitor, you will see critical errors, warnings, and system events, which help users find out the root cause of crashes, application failures, and hardware issues.

How to Access Windows Reliability Monitor in Windows 11

Windows Reliability Monitor is a powerful hidden diagnostic tool that shows a timeline of your system’s stability and crash history. Here’s how to access it:

Method 1: Using Start Menu

Click the Start button (or press the Windows key), type “reliability”, and then select “View reliability history” to open the Reliability Monitor.

Method 2: Using Control Panel

Step 1: Press Windows + R, type control panel in the Run box, and press Enter to open the Control Panel.

Step 2: Navigate to System and Security > Security and Maintenance.

Step 3: Click “View reliability history” under the Maintenance section.

Method 3: Using Command Prompt

Step 1: Click the Start button or press the Windows key, type cmd into the search bar, right-click on Command Prompt in the search results, and select “Run as administrator.”

Step 2: Type perfmon /rel and press Enter.

Method 4: Using Desktop Shortcut

Step 1: Right-click on an empty space, select New, and then choose Shortcut from the context menu.

Step 2: In the Type the location of the item field, enter: perfmon /rel and click Next.

Step 3: Name the shortcut Reliability Monitor and click Finish.

How to Use Windows Reliability Monitor to Diagnose and Fix Problems

When you open Windows Reliability Monitor, the first thing you notice is a graphical timeline showing your system’s stability throughout a period of time. This timeline is quite helpful tool when it comes to diagnosing issues with the system’s performance. Inside the Reliability Monitor ,you find System Stability Chart, which shows how reliable your system has been on a daily basis using a scale from 1 (least reliable) to 10 (most reliable). Each vertical bar corresponds to a day and its height corresponds to the score for that day. Often, a decline in the score coincides with crashes in the applications, hardware malfunctions, or recent software updates.

Step 1: Identify System Stability Issues in the Reliability Monitor

Blue Line (System Stability Index):

This line shows your system’s overall reliability on a scale from 1 (least stable) to 10 (most stable). The higher the line, the more stable your system is over period of time. The calculation is based on system events like crashes, application failures, and hardware errors.

Red X Marks (Critical Errors):

Red X indicates serious problems that affected your system’s stability. The cause may be an application crash, a system crash, blue screen of death, or hardware failure.

Yellow Warning Signs (Warnings):

These indicate less severe issues that could potentially impact your system but didn’t cause any critical failure. This may be an unsuccessful software installation, a warning of a driver failure, or other less important system events.

By analyzing these symbols along the timeline, you can quickly spot when and how often your system has experienced problems which help you troubleshoot or decide when to take action.

Step 2: Investigate Errors

When you find a red “X” in Windows Reliability Monitor, it means your system has a critical error, such as an app crash, system failure, or hardware issue. If you click on the error, it shows a detailed error report that helps to fix the problems.

Step 3: View Problem Reports

Click “View all problem reports” at the bottom left.

This section provides detailed logs of system failures and suggested fixes.

Step 4: Take Action

If a driver issue is detected, update or reinstall the driver.
If a Windows update failure occurs, manually install the update.
If an application (like Chrome or Firefox) crashes repeatedly, check for compatibility issues.

Other Hidden Diagnostic Tools in Windows 11

Hardware and Devices Troubleshooter

This tool helps diagnose hardware-related issues. To access it:

Step 1: Click the Start button or press the Windows key, type cmd into the search bar, right-click on Command Prompt in the search results, and select “Run as administrator.”

Step 2: Type msdt.exe -id DeviceDiagnostic and press Enter.

As Microsoft has discontinued MSDT tool in post-2025 versions, however if it works in your device, it can analyze reasons for slow performance such as excessive startup items and misconfigured power settings.

Windows Memory Diagnostic Tool

If your Windows PC experiences random crashes, it could be due to memory. To run a memory test:

Step 1: Go to Start Menu and type “Windows Memory Diagnostic”.

Step 2: Click on “Restart now and check for problems”.

System File Checker (SFC)

Performance issues may be caused by corrupted system files. For scanning and repairing files:

Step 1: Click the Start button or press the Windows key, type cmd into the search bar, right-click on Command Prompt in the search results, and select “Run as administrator.”

Step 2: Type sfc /scannow and press Enter.

Final Thought: Hidden Windows 11 tools

Many Windows 11 users face issues like unexpected errors, crashes, or update failures. Though these problems can be addressed with built-in troubleshooters, Windows Reliability Monitor is one of the lesser-known tools which offer extensive information regarding system stability. Windows 11 users can utilize this tool in combination with Hardware Troubleshooter, Memory Diagnostic, and System File Checker to effectively resolve the persistent issues that come with Windows 11.
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