Think I messed up my computer

Hi, I downloaded Avast for the first time tonight and once it was on my comp I was told to restart, so I did. Then when my comp was starting up it started scanning before I even got the chance to log on and it came across a virus or two and some spyware, so I started deleting them (when I should have moved them to the virus chest) and it was only when I clicked delete that I noticed the files I was deleting were system32 files. I don't know a lot about computers, but im pretty sure those are important files. So how do I know if I've messed up my computer or not?

I think your safe. Usually, virus files lie within the System32 folder. The system32 folder doesn't just hold Windows files. If your computer still boots, your OK.

Thanks, you have put my mind at ease