A diagnostic policy service is not running error may appear when you try to install a security update. This article explains how to fix the problem, as well as potential side effects from fixing it.

The “the diagnostics policy service is not running access denied” is a message that can appear when you try to start the Diagnostics Policy Service in Windows 10. This error can be caused by a variety of different reasons, from malware or errors in your system files.

Diagnostics Policy Service is Not Running Error in Windows 10

Diagnostic Policy Service is a unique service included by default with the Windows operating system. However, if it is not operating and an error message is shown, there are a few simple solutions to repair Diagnostics Policy Service (DPS). This error may occur as a result of corrupted related files.

To learn more about the Diagnostic Policy Service and how to repair it if it isn’t operating, see the article.

What is a Diagnostic Policy Service, and how does it work?

The Windows Diagnostic Policy Service is a critical Windows service that not only detects but also assists in identifying and troubleshooting problems in your system. If the Diagnostic Policy service is disabled, Windows will no longer be able to identify and diagnose possible system faults.

How to Fix It When It Doesn’t Run:

There are a number possible causes for the Diagnostic Policy Service’s inactivity. The problem is usually caused by faulty or destroyed files. The following are some of the reasons:

  • The Diagnostic Policy Service was turned off.
  • The network adapters have become obsolete or have been corrupted.
  • The administrator rights are not available to the Local and Network services.

To repair the Diagnostic Policy Service not running problem, use the techniques listed in the following section.

Solution 1: Enable the Diagnostic Policy Service.

You will need to activate the Windows diagnostic policy service if it is disabled on your computer. Here’s how to use the Services application to activate it.

1. Press the Windows key + R at the same time.

2. Click OK after typing services.msc.

3. Now, as seen below, look for ‘Diagnostic Policy Services.’

Diagnostic policy service

4. Double-click it now.

5. To expand the Startup type: box under the ‘General tab,’ click on it.

6. From the dropdown menu, choose ‘automatic.’

Diagnostic policy service properties

7. After that, click Apply and then OK to preserve your changes.

Fix 2: Give yourself the Network And Local Service Administrator Privilege.

In the event that the Local and Network services do not have administrator credentials, the Diagnostic Policy services may fail to function. Follow the procedures outlined below to gain administrator privilege.

1. In the Windows search box, type Command Prompt.

2. Now, right-click on it and choose Run as Administrator from the drop-down menu.

3. Finally, copy the command below and paste it into the Command prompt box, then press Enter.

/add networkservice net localgroup Administrators /add localservice net localgroup Administrators

net localgroup command

4. Now, wait for the inputted instruction to complete successfully.

5. After the program has been properly completed, just reboot your computer to preserve your changes.

If this solution does not address your issue, go on to the next one.

Reinstalling the Network Adapters (Fix 3)

The Windows Diagnostic Policy Service will cease working if the network adapters are corrupted. As a result, reinstalling network adapters may assist you in launching the Windows Diagnostic Policy Service.

1. Open the RUN program by pressing Windows + R.

2. Click OK after typing devmgmt.msc.

Type devmgmt msc

3. Now look for Network Adapters among all the devices.

4. Double-click Network adapter to expand it when you’ve found it.

5. Select Uninstall device from the Network adapters menu by right-clicking on it.

6. Follow the instructions above to remove all of the available network adapters.

Device manager network adapters

7. After that, go to the menu and choose Action, then Scan for Hardware Changes.

Note: If you have Windows 11 or 10, the network adapters will be installed automatically for you, so you won’t have to manually install them.

If reinstalling the Network adapters hasn’t worked, then try the approach listed below.

Fix 4: Run a scan using SFC or DISM.

Many Windows customers have claimed that after running an SFC scan, they were able to launch the Diagnostic Policy Service on their computer. Here’s how to run an SFC scan on your computer.

1. Open a Command Prompt with administrative privileges.

2. Press the Enter key after typing sfc /scannow.

Type sfc/scannow

3. Now wait for the scan to finish; the damaged files will be repaired automatically.

4. Restart your computer when the scan is finished.

If the SFC scan does not work for you, you may attempt the DISM scan. Here’s how to go about it.

1. As recommended above, open the Command prompt in administrator mode.

2. Now, in the same order as shown below, type the instructions and press Enter after each one.

Dism /Online /Cleanup-Image /CheckHealth Dism /Online /Cleanup-Image /ScanHealth Dism /Online /Cleanup-Image /RestoreHealth Dism /Online /Cleanup-Image /RestoreHealth Dism /Online /Cleanup-Image /RestoreHealth

dism online cleaup image check health command

3. Now sit back and wait for the scan to finish.

4. Restart the computer when the scan is finished to save the changes. Method

5. Use System Restore to fix the problem.

If the above procedure doesn’t work, you may try restoring the system to a condition prior to any Windows updates or programs installed on your computer.

Note: This procedure is only for people who have previously set a restore point before upgrading Windows or installing any new software.

1. In the Windows search box, type Restore.

2. Select Create a restore point from the drop-down menu.

3. Go to the System Protection tab next.

4. Select System Restore from the drop-down menu.

system restore tab option

5. Finally, press the Next button.

system restore

6. Next, choose the desired restoration point and click Next.

7. Now all you have to do is follow the onscreen directions to get your system back to where you want it to be.

6. Restart your computer.

If none of the preceding methods work, try the ultimate option, Reset this PC, which will undoubtedly resolve the Diagnostics Policy Service issue. However, only use this strategy if you have no other options.

1. On your keyboard, press the Windows key.

2. Select Reset this PC from the Reset menu.

Reset this pc

3. Select Get Started (for Windows 10) or Reset this PC from the menu (for Windows 11)

Recovery reset this PC

4. Now choose the first option, “Keep my files.” Reset this pc option in Windows 10

5. Then follow the remainder of the wizard’s instructions.

6. The computer will restart a few times during this procedure; do not do anything.

After the reset procedure is completed, you may resume normal operations without encountering any Diagnostic Policy Service errors.

So that was all there was to it when it came to the Windows Diagnostic Policy Service and how to repair it if it wasn’t working. If you have any questions, please leave a comment below and we will do our best to assist you.

The “diagnostic policy service is not running error 5: access is denied” is a problem that can be faced by many Windows 10 users. This issue causes the Diagnostics Policy Service to stop working properly and it also prevents any other services from being able to start.

Frequently Asked Questions

How do I fix the diagnostics policy service is not running Windows 10?

A: The diagnostics policy service is not running Windows 10 error on windows 10 home edition. Troubleshooting the problem and solving this issue means you probably have a virus or malware infection, so please take some time to fix your antivirus software before continuing further with troubleshooting

How do I enable diagnostics Policy in Windows 10?

A: To enable the diagnostics Policy in Windows 10, you will need to open up Action Center from the Start menu. Once opened, click on Troubleshoot > Advanced Options and then select Diagnostic and Tracking Protection under Privacy options.

How do I fix Windows could not start the Diagnostic Policy Service on local computer?

A: Windows Update is the most likely cause of this issue. If you have already done a system scan and your computer still cannot start, try restarting it in Safe Mode from here:

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