So, I opened up studio, I don't play, run or do anything that makes it a "game" but then random scripts start appearing, inside it comes up with;
l = Instance.new("VelocityMotor")
l.Parent = script.Parent
l.Name = "4D Being"
script.Parent = l
Every 2-3 seconds or so, it does it again and again until my explorer just freezes, even If I delete all the scripts it does it again and again. Any help?

2 comments
I don't use Free Models. Might be a plugin...
Ah okay, that would make sense if it keeps on happening when you open roblox studio, in that case just delete all the plugins , and then just slowly add them back in until you find the culprit