avastui.exe is a program which is probably legit. So, if avastui.exe is on your laptop or desktop computer, it is probably ok, and will NOT cause problems. Even if your PC is clean, it is still recommended to use a good antivirus with a good detection rate, in order to yourself your system against viruses and malware.
Usually, the default filename and directory where this program is stored is
C:\Program Files\AVAST Software\Avast\avastui.exe.
The MD5 fingerprint for this file is 11bffaafeb13abcf821c690629f37a81.
This application is NOT registered as a Windows service. This is good.
This program uses the Internet to communicate. Today this is ok. For example, most of the apps on your computer check for new updates. In order to do this, Internet communications are required.
This executable runs in 32-bit mode. It can not use the entire set of features of modern PC chips. This ordinarily happens because the authors did not bother to upgrade it to 64-bit code.
The description present in the file is Avast Antivirus.
File version 17.1.3394.30.
Maker AVAST Software.
Legal copyright notice Copyright (c) 2014 AVAST Software.
avastui.exe appears to have visible windows. This is good because it doesn't work in a kind of stealth mode. Its operation is clearly displayed to you.
Some insecure functions of Windows appear to be used, such as functions for recording the keyboard. We recommend you to read more about this program.
A digital certificate is missing from this program. The publisher did not bother to sign it. This is probably bad.
It has an uninstall string in registry, which is a good sign. si are uninstall.