RegBak

RegBak is a tiny application designed to quickly create backup copies of the Windows registry, in order to restore settings at a later time if the operating system starts experiencing any stability issues, due to malware attacks, for instance. It has standard and advanced options alike to please users from both categories.
The setup operation is speedy and has only familiar options. Concerning the interface, the software utility opts for a common window with a clean and intuitive layout that focuses on functionality.

Select the registry hives to back up

A new backup job can be seamlessly put together by indicating the saving directory and description. Advanced users may tinker with options about the registry hives by including or excluding those who belong to the system or current user, the ones not loaded by Windows, and others.
The tool shows the full path and size of each hive to give you the possibility to handpick the exact ones you want to include in the backup operation while excluding the rest. RegBak takes a snapshot of the current registry to copy each selected hive in the specified directory and to create an INI configuration file necessary to restore settings.

Manage multiple backups and configure advanced settings

You can put together as many backups as you want, restore or remove them from the computer, as well as change the default backup folder along with the date and time format.
Furthermore, the tool can be instructed to overwrite any existing backup files and delete old ones automatically, prompt you for creating backup folders when they don't exist, and compress backup data in Microsoft Cabinet format to reduce occupied space. It's also possible to disable Volume Shadow Copy, a service that permits Windows to take snapshots of currently used registry hives.

Command-line support for scheduled tasks

Backup and restore jobs were performed rapidly while CPU and RAM usage remained minimal. Too bad that RegBak doesn't integrate options for scheduling backups via the graphical interface. However, the help manual shows power users how to do this through PowerShell.