Help computer experts, how come there are some small light bars when my computer is turned on now? That line sometimes gets stuck when entering the system.

it's probably the monitor! Landlord, check the interface of the monitor! If it still doesn't work! Look at another computer! First of all, make sure it's the monitor! Now just look at the graphics card! Remove the graphics card and use an eraser. See if it's ok. If it still doesn't work, change the graphics card driver! Excuse me, is the first card driver of the building original or brought with it when installing the system! If so, you have to change some incompatible drivers! I think so myself! Try not to live in the building!