Hi! Thanks for reaching out. To make sure I get a clear picture: when you say you're unable to save files in your Live Home 3D Pro version on Windows 10, do you get any specific error message or does the save option just not respond? Also, have you recently updated the app or made any changes to your system or storage locations?

Once I know a bit more, I can guide you through some steps to resolve this. Generally, saving issues can be related to permissions, disk space, or app updates.

Meanwhile, here’s a good starting checklist:
1. Check that you have enough free space on your disk where you save the projects.
2. Make sure Live Home 3D has permission to write to your Documents folder or wherever you save the files.
3. Try running the app as an administrator (right-click the app icon and select "Run as administrator") to see if it resolves any permission issues.
4. Verify you have the latest version of Live Home 3D installed—updates often fix bugs related to saving1.

Let me know which of these you've tried or if you observe any specific behaviors when saving fails. I’ll help you step-by-step from there!