The best method to migrate OneDrive files to another OneDrive account is to use a secure migration tool that can handle account-to-account transfers. The SysInfo OneDrive Migration Tool lets you sign in to your source OneDrive, preview all files and folders, and choose exactly what you want to migrate. You can filter by date, file type, or size, and then move your items straight into your second OneDrive account. The tool preserves every folder, subfolder, and file property, ensuring that nothing gets changed or lost during the move. It saves you from downloading and re-uploading files manually, which is slower and more error-prone.