I can't launch an in-depth analysis on Avast (sorry for the bad English)

Hi,I downloaded several files from the web (despite checking by detailed Avast scan) and I’m afraid I contracted a Rootkit, however Malwarbytes and an anti-Rootkit (Chkrootkit) scan did not give tangent results .

So what do you think, knowing that my Avast was working fine yesterday!

Thanks for your patience :wink:

maybe connected with https://forum.avast.com/index.php?topic=237048.0 ?