If you don't want the protective film, you can pry one of its corner, blow it slowly until it is hot with a hair dryer, and wipe the screen with computer cleaning agent. It is usually workable in this way. But if you are inattentive, it is easy to leave residue on the computer screen and its appearance will be affected.
The general protective film is of more than one layer. Gently pry the pasted protective film from the corners of the computer screen, and then pull it up by hand. If you want to continue to use the protective film, you should pay attention to making your fingers away from the adhesive side of the protective film, otherwise the film will be stained with fingerprints which are difficult to remove and will have influence on its appearance.
First shut down the computer. Cut off the electricity as well.
You can use an electric?hair?drier. When the casings lamination becomes hot after blowing, it is very easy to tear it off.
