Hi RMM1,

Please make sure :

  1. Do you have file sharing on your internal network?

If yes, please make source that shared file has been cleaned and scanned with avast antivirus on your file server

  1. Whether your often use removable media on your site to copy and paste file from outside environment?

If yes, please for each time you plug in to your system. I recommended you to scan first before your copy and paste the file which’s to avoid any malware installer copied in to your system

  1. Please do a scan to avoid any missed file before you apply avast on your system

I hope can solved your problem.

cheers,
Yanto Chiang