NOD32 Antivirus – Access Denied While Trying To Scan

Hello guys! I come across with an error and has the following message shown in the image:

C:PROGRAM FILESESETESET NOD32 ANTIVIRUSegui.exe
Access is denied.
I am aware that my computer is installed with a powerful and efficient NOD32 Antivirus and I am wondering this access denied pop message thing keeps on appearing?
Why this problem keeps on bothering me? What should I do with this? Please help!
