Avast Registry Scan

Hello,

I just upgraded avast so i could use the performance clean up section. Located under scan “Scan for performance issues”. Avast recommended that I do so and that they could free much quite a bit of space on my hard drive.

after running the clean up it did exactly what they said and I had an additional 15 or so GB on the hard drive free. Once completing the process they suggested that i do a Registry Scan. I agreed and started the scan. I was prompted to restart my computer after doing so and once everything was back up and running i checked my hard drive space and I now have an additional 28 GB of space on the hard drive.

Is this normal? what can I do to get back that space?

https://forum.avast.com/index.php?board=63.0