This is a it difficult to explain because I don't know the technical words to describe the problem in English but I'll try my best.
My laptop began to go crazy last night. Something causes my laptop to go from left to right at fast speed through every button or option on websites and windows and scroll down through them. For example, if I click on the address bar the laptop suddenly scrolls down through the dropdown bar at very fast speed.
As in the picture below, something causes that selecting and it scroll down all crazy.
I tested my keyboard on a website and I found that when I press the ctrl key on the right a few times, for some reason it activates the tab key and the mess starts. I removed the ctrl key to clean inside, but the problem persists. I also run anti-virus programs, but they haven't found anything.
I think the problem was caused when I tried to save a pic and changing its name by typing numbers on the row above the alphabet keys randomly without looking; I think I pressed on the wrong key, but I can't identity what key that was.
I hope someone can help me.