I found a website which explains how to make extra registry backups. A tool for retrieving these backups is included. It's a zipped batch file, with instructions which simply say to unzip it to the root directory.
That's where I get confused. What part of the root directory does it go to? I don't know the exact path to enter.

The root directory is typically the C drive. Just unzip it to C and then there you will find it when it's time to run the program.

Thanks, cremedies, for this and previous help.
Harvey

No problem Harvey. If you need any further help in the future, I am not hard to find. Just click on the link below.