Now we're getting somewhere.
So the idea is, use System Restore instead of making or replacing Registry Back-ups.
Does using "Tweaking.com Registry Backup" have risks? Why any third party bakcup software instead of using what Windows already provides for backup & restore of Registry? As in the video in first posting?
Tweaking.com Registry Backup has no risks as far as I know, since it works by backing up the files containing your registry in its own folder. This way you can keep track of where the backups are, choose what to backup and restore everything in one fell swoop.
To be honest I prefer using third-party programs (specifically Tweaking.com Registry Backup) to backup the registry for the reasons above. ERUNT does not play well with Windows 8, so I would refrain from using that.
Hope this answers your questions.