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Running a Diagnostic on Your PC: Easy Guide

by Marcin Wieclaw
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how to run a diagnostic on pc

Welcome to our easy guide on how to run a diagnostic on your PC and troubleshoot its performance. Whether you’re experiencing lagging programs, freezing screens, or frequent crashes, diagnosing the issue is the first step towards finding a solution. By running diagnostic tests, you can identify hardware or software problems and take appropriate action to improve your PC’s performance.

To get started, we’ll walk you through the diagnostic options available in Windows 10 and Windows 11, as well as introduce you to some third-party diagnostic tools that offer more advanced features. So let’s dive in and get your PC back on track!

When it comes to diagnosing your PC, Windows provides several built-in tools that can help you identify and troubleshoot issues. In Windows 10, you can access these tools by going to Settings, then selecting Update & Security, and finally Troubleshoot. In Windows 11, navigate to Settings, click on System, and then Troubleshoot.

One of the most useful built-in diagnostic tools is the Windows Memory Diagnostic. By searching for it in the taskbar’s search tool and running the app, you can test your RAM for any issues. If your PC programs are lagging or freezing, running this diagnostic test can help pinpoint any problems with your RAM.

In addition to the Windows Memory Diagnostic, you can also utilize other built-in tools like Reliability Monitor, which provides an overview of your system’s stability and helps identify potential issues. Hardware-specific apps like the Intel Processor Diagnostic Tool can also be useful for testing components like your CPU.

If the built-in tools don’t meet your needs, you can explore third-party diagnostic apps for more advanced features. Popular options include MemTest86 for RAM testing, CrystalDiskInfo for hard drive diagnostics, and HWiNFO for comprehensive hardware testing and reporting.

Remember to exercise caution when downloading and using third-party apps, and always scan them for malware to ensure your PC’s security. It’s also worth noting that some hardware manufacturers, like Intel CPUs and Dell computers, offer their own diagnostic tools specific to their products.

In the next sections, we’ll provide more detailed information about the built-in and third-party diagnostic tools available for Windows 10 and Windows 11. We’ll also delve into additional options for hardware diagnostics, including specific tools for the Sun Ultra 24 workstation.

Now that you have a general overview of the diagnostic options available, let’s explore each one in more detail. By using these tools, you’ll be able to diagnose and troubleshoot any issues affecting your PC’s performance, ensuring a smoother and more reliable computing experience.

Windows 10 Built-in Diagnostic Tools

Windows 10 provides users with built-in diagnostic tools to troubleshoot hardware and system issues on their PCs. These tools, Performance Monitor and Windows Memory Diagnostic, offer a comprehensive set of features to help identify and resolve problems.

Performance Monitor:

The Performance Monitor is a powerful tool that offers detailed statistics and insights into the performance of your PC’s hardware, software, CPU, network, disk, and memory. It provides live performance graphs and customizable data sets, allowing you to monitor and analyze your system’s performance in real-time.

Windows Memory Diagnostic:

Windows Memory Diagnostic is specifically designed to test your PC’s RAM. It works by writing data to and reading data from your computer’s RAM, helping identify any faulty hardware. To launch the Windows Memory Diagnostic, simply search for it in the Run window by pressing Windows + R, select the tool, and follow the prompts. The tool will prompt you to restart your computer, and it will scan your RAM during the restart process. Once the scan is complete, you can view the results in the Event Viewer.

These built-in diagnostic tools, Performance Monitor and Windows Memory Diagnostic, can be valuable resources in troubleshooting and diagnosing hardware issues on your Windows 10 PC. Whether you’re experiencing worsening performance, frequent crashes, or corrupted data files, these tools can help you pinpoint the root cause and take appropriate actions to resolve the issues.

Tool Functionality Key Features
Performance Monitor Locating and diagnosing hardware and system issues – Detailed statistics about hardware, software, CPU, network, disk, and memory
– Live performance graphs
– Customizable data sets
Windows Memory Diagnostic Testing PC’s RAM – Writing to and reading from RAM to identify faulty hardware
– Integrated with Event Viewer for result analysis

By utilizing these Windows 10 built-in diagnostic tools, users can gain valuable insights into their PC’s performance and identify potential hardware issues. Whether you need to diagnose CPU, memory, or disk-related problems, these tools provide the necessary functionality to troubleshoot and resolve issues effectively.

Third-Party Hardware Diagnostic Apps

If you need more specific or powerful diagnostic tools, you can explore third-party software options. These third-party diagnostic apps can provide more advanced features and detailed information about your PC’s hardware.


MemTest86 is a popular tool for testing RAM on Windows systems. It offers 13 different RAM testing algorithms and supports various RAM types. With MemTest86, you can thoroughly examine your RAM to ensure optimal performance and identify any potential issues.


CrystalDiskInfo is a tool specifically designed for testing hard drives. It provides detailed information about your drives and performs SMART tests to detect potential failures. CrystalDiskInfo enables you to monitor the health and performance of your hard drives and take appropriate action if any issues are detected.


HWiNFO is a comprehensive hardware testing app that provides detailed real-time reports and graphs about your system’s components. It offers in-depth information about CPUs, GPUs, drives, and peripherals. With HWiNFO, you can analyze the performance of your PC’s hardware and make informed decisions regarding upgrades or troubleshooting.


RWEverything is a powerful tool for advanced users who want to check and modify hardware settings. It can test all aspects of every hardware component in your PC, providing comprehensive diagnostic capabilities. However, caution is advised when making changes with RWEverything to avoid unintended consequences.

By utilizing these third-party diagnostic apps like MemTest86, CrystalDiskInfo, HWiNFO, and RWEverything, you can gain deeper insights into your PC’s hardware and troubleshoot any potential issues effectively.

Additional Hardware Diagnostic Options

If you are a Sun Ultra 24 workstation user and encounter hardware-related error messages, there are additional diagnostic options available to help you troubleshoot your system. One such option is the Pc-Check diagnostics software, specially designed for the Sun Ultra 24 workstation. This powerful tool detects and tests various components, ports, slots, and installed hardware, providing a thorough analysis of your system’s health.

You can find the Pc-Check diagnostics software on the Tools and Drivers DVD included with your Sun Ultra 24 workstation. It offers advanced diagnostic tests and immediate burn-in tests, allowing you to pinpoint and resolve any hardware issues that may be causing error messages.

To ensure proper diagnostics, the Sun Ultra 24 workstation comes preinstalled with a diagnostic partition. This partition is crucial for the test scripts to write log files and gather data accurately. In case the diagnostic partition is removed, you can easily recreate it using the Create Diagnostic Partition option found on the Tools and Drivers DVD.

The Pc-Check diagnostics software provides an Advanced Diagnostics Tests menu that offers specific tests for components such as the processor, memory, motherboard, and hard disks. You can gather detailed information about your system’s hardware by accessing the System Information menus. Additionally, the Immediate Burn In Testing option allows you to run Sun-supplied diagnostic scripts to further evaluate your Sun Ultra 24 workstation.

By utilizing specialized diagnostic tools like Pc-Check, you can effectively identify and troubleshoot hardware-related issues, ensuring your Sun Ultra 24 workstation operates at its optimal performance level.


How can I run a diagnostic on my PC?

To run a diagnostic on your PC, go to Settings > System > Troubleshoot (Windows 11) or Settings > Update & Security > Troubleshoot (Windows 10).

Are there any built-in diagnostic tools in Windows 10?

Yes, Windows 10 offers built-in diagnostic tools like Performance Monitor and Windows Memory Diagnostic. Performance Monitor provides detailed statistics about your hardware, software, CPU, network, disk, and memory. Windows Memory Diagnostic is specifically designed to test your PC’s RAM.

Are there any third-party hardware diagnostic apps available?

Yes, there are third-party diagnostic apps that offer more advanced features and detailed information about your PC’s hardware. Some popular options include MemTest86 for testing RAM, CrystalDiskInfo for testing hard drives, HWiNFO for comprehensive hardware testing, and RWEverything for advanced hardware component checks and modifications.

Are there any additional hardware diagnostic options?

Yes, if you have a Sun Ultra 24 workstation, you can use the Pc-Check diagnostics software specifically designed for that workstation. It detects and tests various components, ports, slots, and installed hardware. Additionally, there is a diagnostic partition required for the test scripts to write log files. If the partition is removed, it can be recreated using the Create Diagnostic Partition option on the Tools and Drivers DVD.

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