Hi there! I see you're having trouble sending PDFs from the TurboScan app on your Windows 10 device. To help you better, could you tell me how exactly you're trying to send the PDFs? For example, are you emailing them directly from TurboScan, sharing via another app, or saving and then sending them? Also, are you getting any error messages or does it just fail silently?

Meanwhile, here’s a general set of steps we can try to fix the issue:

1. Check Your Internet Connection: Make sure your device is connected to the internet and the connection is stable.

2. Update TurboScan: Ensure the TurboScan app you’re using is the latest version. Sometimes bugs related to sending files get fixed in updates.

3. Clear Cache or Temporary Files: If TurboScan stores temporary data, clearing cache might help. Since it's Windows, try restarting the app and the device to refresh things.

4. Try Sending Smaller PDFs: Sometimes large file size can cause sending failures. Can you try sending a smaller PDF to check if size is a factor?

5. Use the “Share” or “Open With” Option: Instead of sending from within the app, try saving the PDF and then manually attaching or sharing it via your email client or another app.

6. Check Email App Settings: If you’re emailing using Gmail or Outlook, make sure those apps are up to date and logged in properly on your device.

7. Reinstall TurboScan: If none of the above works, uninstall and reinstall the TurboScan app to fix any corrupted files.

Let me know what you’ve tried so far or how you send the PDFs, and we can dive deeper into the fix. Are you comfortable trying these steps?