Since previous releases, there's been two annoying features in nod32 and smart security:
1) There is no way to stop startup scan once it's started. Of course you can schedule it or remove from the schedule list so that it won't run ever. But the startup scan is an essential scan that should be done at least once or twice a day. Its sometimes anoying that you can't cancel/stop this scan when you are doing some important work and this scan is eating a lot of memory / your work is inurrupted for some reason.
2) When you insert a USB storage device, the scan starts automatically. For some reason, you don't want that drive to be scanned or it is taking too long to complete the scan you wan't to abort it so that you can use that usb device elsewhere to continue some important work or some one is waiting for that usb device so that he can take it. You try to abort the scan, the scan refuses to pause / stop unless it finishes scanning that one particular file.
I am not comparing the above with 'other' security softwares as according to me these 'other' software have no comparison with the best Eset technology. I have been using Nod32 since the year 2000 and I can understand how much the above problems have annoyed me in the past.