dpc watchdog violation

Fixing a DPC Watchdog Violation on Windows 10

Many users of Windows 10 report the incidence of DPC Watchdog Violation. They have to deal with the Blue Screen and a 0x00000133 bug check code.  This is a frustrating issue that many users find difficult to resolve. The computer will automatically restart preventing you from saving all your crucial data and any task you were working on while the error occurred.   Here is a detailed guide on understanding the DPC watchdog violation error, the reasons and the fixes that help resolve the issue successfully.

DPC Watchdog

Understanding the error of DPC Watchdog Violation

If you are able to understand what DPC Watchdog violation error is, you will be able to fix the error effectively, as you can identify the exact reason causing the error and resolve it successfully.

DPC Watchdog Violation is a type of error occurring in your Windows system. DPC is the abbreviated form for Deferred Procedure Call. Watchdog denotes Bug Checker. The Bug Checker helps monitor all windows processes as well as the background performances.   Its check value is about 0x00000133. The violation message appears when Bug Checker waits for a longer duration than normal such as over 100 microseconds. If Bug Checker does not find a response, it will show the error message.

Reasons behind the occurrence of DPC Watchdog Violation error

The violation error message can be caused by several factors. Here are the factors:

  • The blank blue screen also known as BSOD (Blue Screen of Death) is due to hardware incompatibility in your PC or laptop. When you attempt to connect an incompatible hardware such as an AMD Graphic card or NVIDIA or even an external drive, you will find the popup screen.
  • If the firmware or drivers of a hardware you are connecting to your device is not supported by your device you will find the blue screen popping up. This can happen when you connect the external hardware for first time or even when you connect hardware after a couple of months.
  • Conflict between two software applications can also cause the violation error. If software you are installing in your device is incompatible with software present in your device already, it can cause the DPC watchdog violation.

As you can see the factors behind the bug trigger are aplenty. You can face the issue while updating software in your computer or after having installed software. It can also occur randomly.

DPC can be caused when the system needs to update all its hardware drivers. It may also occur when your drive has files that your present Windows 10 version does not support.

5 methods to resolve DPC Watchdog Violation

Here are 5 major methods used to solve the violation error.

Change SATA AHCI controller

This method is used when the cause of the error is connected to storage device and memory of your computer.

To deal with this situation, you have to change the SATA AHCI controller.  This is a driver responsible for data exchange occurring between storage devices in your system and its memory. The driver acts by verifying compatibility of the data and providing an efficient output. You can easily solve the violation error, if you can change the SATA AHCI driver. Here are the steps to perform this change:

Step 1:

Press X button and Windows key button simultaneously.

Step 2:

Choose ‘Device Manager’ option in the menu page that opens.

Step 3:

When you go to the Device Manager option, choose the IDE ATA/ATAPI controllers feature here.


Step 4:

Expand the controller feature.You will find SATA AHCI controller under IDE ATA/ATAPI controller. Use right click and choose properties from the SATA AHCI controller.

To ensure you have chosen the right controller from the driver choose Driver details from Driver Tab. Check whether iaStorA.sys is under the driver list. Now click on OK button to exit.


Step 5

Now choose ‘Driver’ option and click on ‘Update driver’ feature.

Driver DetailsUpdate Driver

Step 6

Next choose ‘Browse my computer for driver software’ option.

Browse my computer

Step 7

Now choose the, ‘Let me pick from a list of device drivers on my computer’.

Let me pick

Step 8

Now choose ‘SATA AHCI Standard Controller’ and select ‘Next’ button. Complete the procedure onscreen.

SATA AHCI Standard Controller

Step 9

Reboot your system. To avoid the error from recurring again, it is best to repeat this procedure every time there is a Windows update.

Successfully updated

Update your drivers


If old firmware is present in your solid state drive (SSD) which your Windows 10 does not support, you have to update the driver to avoid the DPC watchdog error. Here are the steps:

Step 1

Press Windows button and E simultaneously to open the File Explorer or you can choose Computer/my computer/This PC from desktop.

Step 2

Find Computer from the panel’s left side and use right click to open it. Choose Manage option.

Step 3

In the pop up window that appears choose ‘Device Manager’ option present on left side.

Step 4

In the list that opens under Device Manager choose SSD. Note down the important details including model number and related details.

Step 5

Visit manufacturer website and download necessary updates needed for the SSD.

Run Event Viewer

The Event Viewer can help you identify the cause of DPC violation error that displays the blue screen of death.

Step 1

Press R and Windows Key simultaneously and enter, ‘eventvwr.msc’ in Run box. Click on ‘OK’ to open Event Viewer.

Step 2

Find Windows Logs from left side of panel. Choose ‘System’ option.

Step 3

You can find the logs that have Error or Warnings marked in the central part of panel. You can then diagnose the cause behind the violation error.

This will help you identify and choose the right troubleshooting method to rectify the error.


​Scan your hard drive for disk errors

Corrupt files are the key reason behind most incidences of DPC watchdog violation in Windows 10. So you have to check your computer for presence of corrupt files. Here is how you do it:

Step 1

Open the Command Prompt feature and enter the following


Now press ‘Enter’ option.

Check disk

Step 2

The system will prompt you to restart the system or schedule a convenient time for restarting. Select accordingly and press Enter.

Step 3

This process may take some time to complete when you do this for the first time. However when you reboot subsequently, it will be easy to verify the files and identify the corrupted ones.

Check software and hardware compatibility

While you may expect an external device to work smoothly right from the time you start using it,this is not so. You may face the violation error. The drive may not be compatible with the hardware or software present in your device. Here is a simple way to resolve this issue.

Hardware Compatibility –If you are using multiple devices, you have to plug in the device one by one and check their compatibility to identify the drive that is causing the error.

When you identify the particular device you can check its specs and find out about compatibility with your system and exchange it for another compatible device.

 Software Compatibility- For software conflicts causing the violation error, you use trial and error method as in the hardware compatibility testing. Once you identify the software, uninstall it and restart your system to find out if the error persists. If this does not work out use the steps below:

Step 1

Press Windows Key and R button simultaneously, after opening Windows Run feature.

Step 2

Go to ‘Control Panel’ by entering it in dialog box, and press on ‘Enter’.

Step 3

Choose Uninstall a Program option from control panel

Uninstall a program

Step 4

In the applications list under the ‘Uninstall a Program’ feature find the software you had installed earlier by checking the installation date and time present on the top portion of the table.

Uninstall a program feature

Step 5

You can choose to uninstall the programs that you suspect to be causing the issue from the time and date in which they were installed.

Step 6

Once you have uninstalled the program, restart the system to find if the issue is has been rectified.

The above 5 steps will take care of the DPC Watchdog Violation that has been frustrating you.You can also use a professional repair tool for PC error correction, if the above steps are not effective. But the above steps are simple and can be done to effectively rectify the error.