Save the registry or parts of it, even automatically, with Registry Backup
Registry Backup is a free utility that will let you backup and restore your Windows Registry using Shadow Volume Services. This program will backup all Registry settings including those for each user profile in Windows.
If your Registry becomes corrupt or damaged, you can easily select a previously created Registry backup and restore it.
Registry Backup uses a graphical interface that allows you to quickly select the Registry sections that you would like to backup. These backups will then be stored in the C:\RegBackup folder by default.
Using the program, you can then browse the various backups that you have created and restore a particular backup as necessary. Another useful feature of Registry Backup is the ability to create automatic backups of your Windows Registry through the Windows Task Scheduler.