Avast can't read certain scanned files. Error 1920

[REDACTED]

Hello, I'm generally new to the things that can affect my computer and I was worried when my Avast scans turned up showing that certain things could not be scanned. The files go by abortpxe.com,startnet.cmd,wdscapture.inf,SFPATPG.INF

Is this something I should be worried about and have checked out or am I okay? They're all located in the sources folder of my computer which makes me think that there are important files being protected now, but since I'm no expert I'd like to hear what others have to say.

[Pondus]

How do I handle files that avast! can’t scan?   http://blog.avast.com/2014/02/28/how-do-i-handle-files-that-avast-cant-scan/