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Backup, Restore and Optimize Windows Registry using ERUNTgui

by Shivaranjan on May 12, 2011


ERUNTgui is a freeware software for Windows that can backup, restore and optimize Windows registry. You can backup and restore registry from Windows as well using registry editor but this software is useful for those who don’t want to poke around with Windows registry.

Features of ERUNTgui:

The software does three things with Windows registry: takes the backup, restores from previous backup if you require and optimizes the Windows registry. When the application is launched these functions are promptly displayed as show below:

Windows registry backup restore optimize

When you choose the backup option the application starts the backup process and backed up registry is stored in the backup folder that you can set from the options.

Windows Registry backup 2

The time taken to backup varies from computer to computer based on the Windows setup.  The restore function is straight forward to use, just select the restore registry option and choose the registry backup that you would like to use and the application will do the rest for you. You may have to reboot your computer after the registry restore is completed. The most useful feature that I found in this software was the optimization of the Windows registry which can speed up your computer. To optimize the registry just choose the ‘Optimize Registry’ option from the main screen and the optimization will be done in a couple of minutes.

Windows Registry optimization

After the optimization is completed you will be asked to restart your computer for the changes to take effect.


You can further customize settings within the application. You are provided with a option to run this software at Windows startup and automatically backup the registry, option to include other ‘open user registries’, option to control the number of backup to retain in days and option to choose the location in which you would like to save your windows registry backups.


This software was tested under Windows 7 32bit and Windows Vista 32 bit and the software did what it was supposed to do.

Download ERUNTgui

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