atieclxx.exe is a program which is probably NOT a virus or malware. So, if atieclxx.exe is on your laptop or desktop computer, it is probably ok, and will NOT be a cause for concern. Even if your PC is virus-free, it is still recommended to purchase a good antivirus with a good track record, in order to defend yourself against viruses and malware.
This program is usually found in C:\Windows\System32\atieclxx.exe.
The MD5 checksum for this executable is b3ab2d5b98e67ec56ed4eb9d2a3199bf.
This application is NOT registered as a Windows service. This is very good.
This is a x64 executable. It uses the full capacity of modern CPUs.
This task does NOT have visible elements of user interface. This is usually a bad sign.
atieclxx.exe is digitally signed. Nowadays the large majority of serious software applications are digitally signed.
The digital signature extracted from atieclxx.exe checks out perfectly. This is very good.
Digital certificate name: Microsoft Windows Hardware Compatibility Publisher
Certificate's issuer name: Microsoft Windows Third Party Component CA 2012
This program does NOT have an uninstall routine set up in registry.