@TJDMHEM: Thank you

@horgen: Thank you i dont know they are horizontal red and yellow lines but only when i play video games

@mikrir: They are horizontal red and yellow lines

I have some games on my laptop but when i play it starts to lag and red and yellow lines start to show i connected the laptop to the router but it still lags one of the games is Unturned and it lags and shows those lines,but on my computer it doesent lag,my laptop has an i5 procesor 500gb memory and 4gb ram