avpui.exe is a program which is probably NOT a virus or malware. So, if avpui.exe is on your PC, it is probably ok, and will NOT cause problems. Even if your PC is clean, it is still recommended to purchase a good antivirus with a good detection rate, in order to yourself yourself against threats.
Normally, this program is found in C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 17.0.0\avpui.exe.
The MD5 fingerprint for this file is 475dadd11851ded7ff7de7d1a2c2cd9b.
This program is NOT registered as a Windows service. This is good.
This program runs as a 32-bit program. It can not use the entire set of features of modern PC processors. This is quite normal because the publishers did not upgrade it to use the x64 instruction set.
The description stored in the program is Kaspersky Anti-Virus.
File version 126.96.36.1991.
Author AO Kaspersky Lab.
Copyright notice © 2016 AO Kaspersky Lab. All Rights Reserved..
This exe does NOT have visible windows. This is usually a bad thing.
avpui.exe has a digital signature. Today the large majority of clean programs are digitally signed.
The digital signature found in avpui.exe checks out perfectly. This is excellent.
Digital certificate name: Kaspersky Lab
Certificate's issuer name: DigiCert High Assurance Code Signing CA-1
It has an uninstall string in registry, which is good. si are uninstall.