avastui.exe is a application which is probably NOT a virus or malware. So, if avastui.exe is on your computer, it is probably ok, and will NOT be a cause for concern. Even if your PC is virus-free, we still advise you to run a well-known antivirus with a good track record, in order to yourself your PC against viruses and malware.
Usually, the default filename and folder where the application is stored is
C:\Program Files\AVAST Software\Avast\AvastUI.exe.
The MD5 checksum for this program is ac2458040158fcf62698ddefc9e0a915.
This application does NOT run as a Windows service. This is normally a good sign.
This executable runs as a 32-bit program. It can not benefit of the entire set of features of nowadays' PC chips. This is quite normal because the publishers did not upgrade it to use the x64 instruction set.
The description present in the exe is Avast Antivirus.
File version 17.7.3660.244.
Company AVAST Software.
Legal copyright Copyright (c) 2014 AVAST Software.
This executable does NOT have visible elements of user interface. This is most likely a bad sign.
Some insecure features of Windows appear to be used, such as functions for tapping the keyboard. We advise you to read more about this program.
avastui.exe has a digital signature. Today most serious software applications are digitally signed.
The digital signature attached to avastui.exe verifies as ok. This is excellent.
Digitally signed by: AVAST Software s.r.o.
Certificate's issuer name: DigiCert High Assurance Code Signing CA-1
This application does NOT have an uninstall routine set up in registry.