The error code 0x000006DA, known as “RPC_S_NOTHING_TO_EXPORT” in the Win32 system often arises when theres an issue with the Remote Procedure Call (RPC) service on Windows. This error indicates that the RPC server lacks interfaces to share with clients hence its name “RPC_S_NOTHING_TO_EXPORT.” Below are some steps that might help resolve this problem;

1. Restart Your Computer; A simple reboot can sometimes fix system related issues, including this one.

2. Verify RPC Service Status;
Press Win + R to launch the Run dialog.
Enter `services.msc` and hit Enter to open the Services window.
Find the “Remote Procedure Call (RPC)” service.
Ensure it is running and set to start
If its not running right click on it choose “Start “. Then set the startup type to “Automatic.”

3. Check Dependencies;
In the Services window double check the dependencies of the “Remote Procedure Call (RPC)” service.
Confirm that its dependent services, like “DCOM Server Process Launcher” and “RPC Endpoint Mapper” are also running properly.Ensure your firewall settings are properly configured to allow RPC communication and not blocking it. If you are using third party firewall software refer to its documentation for instructions on adjusting settings to permit RPC traffic.

Verify the registry settings as incorrect configurations can lead to errors. Exercise caution when modifying the registry ensure you have a backup before proceeding. To access the Registry Editor, press Win + R to open the Run dialog, type ‘regedit ‘. Hit Enter. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RpcSs and check the “ObjectName” value; it should be set to “LocalSystem.” If not double click, on “ObjectName ” change it to “LocalSystem,”. Click OK. Close the Registry Editor. Restart your computer.

To run System File Checker (SFC) open Command Prompt as an administrator, input ‘sfc /scannow ‘. Press Enter. Allow the scan to complete as it will identify and repair any system files.
7. Make sure to check for any updates on your Windows system to ensure its running with the patches from Microsoft, which can address known issues.

8. If you’ve encountered problems after installing software or updates recently consider using System Restore to revert your system back to a point where it was functioning properly.

If these steps don’t fix the problem reaching out for help from Microsoft support or seeking advice, from technical forums tailored to your systems setup and situation might be necessary.