When using Windows PC, you may encounter several problems that may prevent you from executing a program or continue with your work. One common example is ERROR_NESTING_NOT_ALLOWED 215 (0xD7). It also shows the message, “Cannot nest calls to LoadModule.”
There can be varying reasons as to why your PC shows the Windows issue. However, you can also try to troubleshoot it with several workarounds. Let’s check them out below.
Potential Solutions for ERROR_NESTING_NOT_ALLOWED 215 (0xD7) Issue on Windows PC

You can find below several methods that will help you deal with the nesting not allowed error on Windows. Work on these solutions one at a time and see if it works for you.
Run the Program in Compatibility Mode
Look for the affected program that you want to run and right click on the icon. Select Properties. Navigate to the Compatibility tab. Under the Compatibility Mode option, check the box next to Run this program in compatibility mode for.
Now, select the more ideal Windows version. Click Apply and then click OK. Restart your computer.
Update the Program
While apps or programs are automatically updated by Microsoft, you can also try to manually install available updates on your app. Head over to Microsoft Store and locate the program you want to update. Select Get updates and install if available.
Perform a SFC Scan Method on your PC

Launch the Command Prompt and run it as administrator. Enter the following command: sfc /scannow. Wait for the scan to finish and see if it fixes the issue.
Reinstall the Program
Maybe you need to uninstall and reinstall a fresh version of the program you want to run. To do this, launch the Control Panel of your Windows PC. Go to Programs and head over to Programs and Features. Select the program and click Uninstall. Try to uninstall the app and reboot your device. You can then reinstall the app.
Do a System Restore
Open the Control Panel and head over to System and Security. Select Recovery and click Open System Restore. Click Next and select the restore point for the program. Click Next and click Finish.
Contact Microsoft Support
If nothing works, you might want to contact Microsoft support. Go to https://support.microsoft.com/en-us/contactus.
Wrapping Up!
Windows errors are common cases but there are always solutions to these issues. Hopefully, one of the methods above can help you!