Microsoft explains the lack of Registry backups in Windows 10
by Martin Brinkmann on June 29, 2019 in Windows – Last Update: July 01, 2019 – 35 comments
We noticed back in October 2018 that Microsoft’s Windows 10 operating system was not creating Registry backups anymore. We have created two Registry files to enable and disable automatic Registry backups on Windows 10. You can download them with a click on the following link: Windows 10 Automatic Registry Backup Script
Note: If you get 0KB files in the folder mentioned above then you may need to open the Task Scheduler again to set a trigger for the task (since there may be none).
Source: www.ghacks.net