Yes. Once a device is upgraded to Windows 11, it has 10 days to move back to Windows 10 while still keeping files and data that were migrated to Windows 11. After the 10-day period, files and data need to be manually backed up, for example to OneDrive, and then a "clean install" performed to move back to Windows 10. For more information, see Create installation media for Windows.
If deciding to move back to Windows 10, be aware of the following Windows 10 end of support statement:
Support for Windows 10 will end in October 2025
After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend moving to Windows 11.
Learn more