Should I worry about a cmd opening and typing “echo off”?

I some days see a cmd.exe opening and typing “echo off”, then disappear.

My computer is slow, but I’m not sure if a program running with first line “echo off” would be so slow as to let me see it being typed… That’s a reason to believe it’s a person.

On the other hand, if someone else log into one’s pc, it will open a new session, so you’ll not see what he’s running, right?

I’m not sure if I should worry.

I’m running Windows 10.