How do I run diagnostics?
The Windows Diagnostics tool is a comprehensive tool that can scan your system for hardware and software issues. To access the tool, go to Settings > Update & Security > Troubleshoot > Additional troubleshooters > Windows Diagnostics.In Windows 11:

  1. Go to Start , then select Settings > Privacy & security > Diagnostics & feedback.
  2. Make sure that the View diagnostic data setting is turned On, and then select Open Diagnostic Data Viewer.

From the Advanced Startup options, select “Command Prompt” to open a command prompt window. Then, use specific commands like “sfc /scannow” to run the System File Checker or “bootrec /fixmbr” to repair the Master Boot Record.

What is Windows diagnostic tool : The Microsoft Support Diagnostic Tool (MSDT) is a legacy service in Microsoft Windows that allows Microsoft technical support agents to analyze diagnostic data remotely for troubleshooting purposes.

How do I test my PC

  1. Benchmarking is The Way To Go.
  2. Check Your PC's Performance by Using a Variety of Programs.
  3. Use The Speedfan to Test Your PC's Fan and Temperature Performance.
  4. Use The CPU-Z Software to Check Your CPU.
  5. Use The Disk Management Tool to Check The Partitions on Your Hard Drive.

How to check PC health : View the Health report for your device in Windows Security

  1. In the search box on the taskbar, type Windows Security, and then select it from the results.
  2. Select Device performance & health to view the Health report.

Check your device performance and health in Windows Security

  1. In the search box on the taskbar, type Windows Security, and then select it from the results.
  2. Select Device performance & health to view the Health report.


Press WINDOWS-R on the keyboard to bring up the Run window, enter MSCONFIG and click OK. Under the General tab, click "Diagnostic startup."

How do I run diagnostic mode

In Windows Search, type msconfig and right-click System Configuration, then select Run as Administrator. In the General tab, select Diagnostic startup. To disable the setting, go back to System Configuration and select Normal startup.Running test cases from the command prompt

  1. Run multiple test cases by providing the test cases as parameters separated by commas (,…,…).
  2. Run only the test method or test procedure in a specific test case by providing the name of the test method or test procedure separated by # with the test case name.

You can use a software tool, such as CPU-Z, to check the CPU model, speed, temperature, and voltage. You can also run a stress test, such as Prime95, to see how the CPU performs under heavy load. If the CPU fails the test, shows incorrect information, or causes errors or crashes, you likely have a defective CPU.

  1. Benchmarking is The Way To Go.
  2. Check Your PC's Performance by Using a Variety of Programs.
  3. Use The Speedfan to Test Your PC's Fan and Temperature Performance.
  4. Use The CPU-Z Software to Check Your CPU.
  5. Use The Disk Management Tool to Check The Partitions on Your Hard Drive.

How do I know if my PC is OK : Here are ten tips for monitoring the health of your computer systems to avoid this catastrophe:

  1. Use Diagnostic Tools.
  2. Run a Security Scan.
  3. Carry Out an Internet Speed Test.
  4. Check Your Battery.
  5. Download Malwarebytes.
  6. Check For Updates.
  7. Update Passwords.
  8. Back-Up Data.

How do I check if my CPU is working properly : To perform a CPU check, follow these steps:

  1. Restart your computer and close all nonessential apps.
  2. Select one of the tools listed below, and then run your chosen stress-testing utility.
  3. Monitor the temperature of your hardware while the test runs, and be prepared to stop the test if your PC gets too hot.

How to diagnose Windows 10

Select Start > Settings > Update & Security > Troubleshoot > Additional troubleshooters, or select the Find troubleshooters shortcut at the end of this topic, and then select Additional troubleshooters. Select the type of troubleshooting you want to do, then select Run the troubleshooter.

To re-enable the Diagnostic command prompt (Shift F10 during Windows setup in an upgrade scenario) you need to modify your task sequence to set a variable, and that variable is called OSDSetupAdditionalUpgradeOptions which is described here.Click Start → All Programs → Accessories. To run the command prompt: with standard user rights, click Command Prompt. with administrator rights, right-click Command Prompt and select Run as administrator.

How to check speedtest in cmd : Use Command Prompt (Only for Windows)

  1. Step 1: Launch Command Prompt by pressing Windows + R and entering "cmd" into the “Run” dialogue box.
  2. Step 2: In the Command Prompt window, type "ping google.com" and hit Enter.
  3. Step 3: Wait until the test finishes.
  4. Step 4: Review your findings, including your ping time.