How to Downgrade Windows 11 to Windows 10 without Losing data?

DevinZhang  To downgrade from Windows 11 to Windows 10, you have a 10-day time frame after upgrading to Windows 11. During this period, you can roll back to your previous version of Windows without losing any files.

Eligibility: The 10-day rollback window is available if you performed an in-place upgrade from Windows 10 to Windows 11. After the 10 days, the system deletes the old Windows files, making it impossible to downgrade without a clean installation.

How to Downgrade Windows 11 to 10 without losing data: Go to Settings > System > Recovery. Under Recovery options, select Go back (if available). Follow the on-screen instructions to return to Windows 10.

If more than 10 days have passed, you would need to reinstall Windows 10 manually, which involves backing up your data and performing a clean installation.