Hi Michael Pyron!
I don't know exactly what you mean, but avast! is designed to permanently scan the files and programs you use!
It is an On-Access-Scanner. This means that it (avast!) scans a file when you open/use it.
To see if the On-Access-Scanner works you can simply click the avast-symbol in the taskbar and click on details...
There you should see that files are being scaned.
yours
onlysomeone