How to Fix Windows Defender Runtime Error Code 1297?

The Runtime error code 1297 occurs as a result of Windows Defender failing or crashing during operation, hence its name. The errors don’t necessarily indicate the code was corrupt, but that it didn’t perform during its run-time. If the error is not dealt with and corrected, you are likely to run into it time and again.

Here are some reasons why you might be facing this issue:

  • Different programs interfering with each other’s process – This is one of the main reasons why users end up getting the Runtime code 1297 on their Windows operating system. These programs are likely to be incompatible, and uninstalling them is the only viable solution if this scenario applies to you.
  • Outdated operating system – Another reason why you might be getting the error is that your system is outdated. When this happens, the system becomes incompatible with some of the programs installed, resulting in errors like the one at hand.
  • Outdated/corrupt graphics driver – In some cases, a faulty graphics driver might also interrupt the process of your operating system, causing the error code 1297.

Having known the potential causes, let’s jump to the effective troubleshooting methods that helped other affected users fix the problem.

Uninstall the Conflicting Programs

If you are facing a Runtime error, then the first thing that you need to do is look for incompatible programs that might be conflicting with each other. When two or more incompatible programs run together, they interfere with the processes of each other, causing issues like the one at hand.

If this scenario applies to you, then begin with closing the conflicting programs. To do so, simply launch the Task Manager and right-click on the targeted program, and select End task. If doing this does not work, then proceed with uninstalling the application completely. 

Here is how you can do that:

  1. Type Control Panel in the search area of the taskbar and click Open.
  2. Inside the Control Panel window, click on Uninstall a program. This will launch the Programs and features window.
    Uninstall a Program
  3. Now, locate and right-click on the targeted application and choose Uninstall from the context menu.

    Uninstall the targeted application
  4. Wait for the uninstallation process to complete successfully and check if the issue is now resolved.

Install the Latest Windows Updates

Windows Defender might also display the error code 1297 if a virus infecting your system is interfering with its working. Another effective solution, in this case, is installing the pending Windows updates available on your system. Since the updates are packed with security patches, installing them can help you fix the issue. 

  1. Press Windows + I keys together to open Windows Settings.
  2. Click on Updates & Security in the following window.
  3. Now, click on Check for updates on the right side of the window. Windows will now initiate a scan for updates. If any are identified, install them one by and one and check if doing so fixes the issue.

    Check for updates

Alternatively, you can also try updating your antivirus program or installing a new, better third-party antivirus to scan for viruses within the system.

Run Disk Cleanup

There is also a chance that you have low available space and resources on your computer for Windows Defender to do its job properly and hence are facing the error code 1297. If this scenario is applicable, then we recommend you run the Disk Cleanup utility to free up some space on your system.

Disk Cleanup provided Microsoft comes built-in within Windows. This tool helps you to eliminate unnecessary files from your hard drives so that your computer will run faster.

Almost all versions of Windows provide this feature and its performance has been enhanced in order to reduce the need for third-party cleanups.

Reinstall Your Graphics Driver

Another common culprit behind the Runtime error codes is outdated, corrupt graphics drivers. If you have not updated the Graphics driver in quite some time, then we encourage you to go ahead and take your time to reinstall the driver.

Follow these steps to reinstall the driver:

  1. Type Device Manager in the search area of the taskbar and click Open.
  2. Inside the newly launched window, locate your graphics driver and right-click on it.
  3. Choose Update driver from the context menu.

    Update Driver
  4. Then, choose Search automatically for drivers and wait for the available update to show up. If any update is available, install it.

    Search Automatically for Drivers
  5. If however, the system cannot find an update, you can uninstall the driver and then reinstall its latest version via browser.

Use System Restore

You can also try restoring your Windows installation to its last working state using the System Restore feature to fix the error code 1297. This is not necessarily a troubleshooting method but more of a workaround.

Microsoft Windows automatically creates ‘restore points’ from time to time. You can restore data from backups of files, programs, registry settings, and the installed drivers.

With the help of these restore points, you can restore your system to a previous state when Microsoft applications operated smoothly.

Reset Windows

In the case that none of the above fixes is able to resolve your problem, chances are you are dealing with a severe corruption issue resulting in error code 1297. In this case, the error can most likely only be resolved by resetting each Windows component.

From here, you have two options. You can either clean install Windows, which will revert your system back to its original state while removing all your personal data or you can go for an in-place upgrade, which will preserve the files and folder.


Zainab Falak

Zainab Falak is a highly educated professional with a background in actuarial science and a strong passion for technology. Her expertise lies in the field of data analytics and she is a proficient programmer in languages such as Python and R. At Appuals, Zainab shares her extensive knowledge of Windows 8, 10, and 11, covering a broad range of topics related to these operating systems. Zainab's ability to effectively communicate technical concepts in a clear and concise manner has earned her recognition and respect in the tech community. She is committed to staying up-to-date with the latest developments in the field and providing readers with insightful and informative content.