In this tutorial we will look at the simple steps to take in order to make a full backup of your registry in Windows 7. The process is exactly the same in Windows XP and Vista. Whilst this process is very simple to do, it is worth advising that you should always create a System Restore point before doing any tinkering in the registry.
So why would you wish to make a backup of your computers registry? Well, if you are anything like me, and you tend to make tweaks to your registry to make Windows function differently, then it is definitely a wise idea to have a good known working version of the registry hive stored somewhere safe. The process itself only takes about a minute to complete. (if that)
First, open up the registry by pressing the Windows Key+R on your keyboard to open the windows Run box. Now just type regedit and hit OK.
After hitting OK you will get a security window asking, Do you want to allow the following program to make changes to this computer?, just hit Yes to access the Windows Registry.
Once in the Registry, scroll up to the top (left-hand pane) and highlight the word Computer.
Now with Computer highlighted go File>Export. When the Export Registry File window pops up to ask you where you wish to save the file and where, then simply save it to your desktop, as it is easier to locate.
Now just hit Save and you’re done.
Note that the saving process may take a few seconds to complete, and you won’t get a message to say that the saving is complete.
Registry icon credit to lopagof