CMD opened by itself

[User999999991 0]

Idk what happened but during a 1H Time window, I wanted to restart my PC. and after I did restart, on start up like after my windows did boot, a cmd popped up but I don't recall that it had anything in, I think it was blank? I am not sure.

I have never got infected or downloaded anything that contains a virus or go into any sketchy site. I always scan my PC like 4 times during the day. but I just checked now, and during that time window, I checked there was some update but like the cmd didn't pop up until I restarted, did that CMD was something strange to happen? or it had to do with update that after i restarted it just popepd up?

I am worried if that was a virus or something and that ESET can't detect it, please let me know

[Marcos 5,466]

Are you continually getting the cmd window? If not, then it's impossible to tell what it was caused by. Otherwise provide a Procmon log from time when it pops up.

[User999999991 0]

No it was only once, during that  1 Hour Time window when Eset updated, but Eset for sure has updated in that 1 h hour window, then  I restarted ( I did not restart for the update, i didnt even know there was an update until later , I just restarted cuz I was cba to close all my turned on applications etc, and once I restarted, this CMD came up on startup, that's it like after the update 

[User999999991 0]

So idk if It was a virus or not and that eset couldn't detect it.. so Idk what to do now. cuz it doesn't happen anymore, it only happened once

[User999999991 0]

Do you think I can send a log of my bootup and you can review the dump?

[itman 1,807]

Some driver updates and other legit app installs might cause the command window behavior you observed.

Unless this command window behavior occurs repeatedly, I would not be overly concerned about it.