How to remove avast! file server security,check out the detailed instruction here http://maxuninstaller.com/howtouninstallguides/

1. avast! File Server Security is a program designed for helping users manage their
computers and deal with the troubles on Windows system. This kind of software does
take much space on your PC, leave long other related products it installed through the
package.
In fact as long as you have an antivirus software installed or just the Windows
Firewall, and make the full use of it, you might not need another assistant program to
teach you how to better manage your PC. Because once you let it get onto your hard
drive, you will keep receiving annoying update prompts or push messages, or even
open the gate for other bundled applications to consume your system resources.
Since there are so many software online today for your choice, it’s important to pick
the most useful ones for your limited drives and prevent the redundant from invading.
In many cases, after removal of a program with the regular means and your PC restart
some entries remain in the system registry, slowing down its performance. So
to completely remove avast! File Server Security, you need to conduct a separate removal
for them.