today when i turned on my laptop something poped up called security tools. at first i thought it was cool because it was scanning for viruses but at the end it says to but it. I did some research about it and learned that it is actually a virus.so i restarted my laptop but it didnt go away and then i remembered that i acidentally installed it. so i searched up some removing videos or anything and finally found 1 video on youtube named how to remove security tools manualy so i wathced it and did everything he said and at the very end i delted it then i restarted my computer and i realized that my background picture isnt there. my question is do i still have security tool or not because before when i didnt delete it it also didnt have the background im scared becuase this is a really new laptop that i got with my own money a week ago i dont want to go back and get a new one please help