“My kid scribbled on my laptop screen with crayon and pen.”
Wilson M., via e-mail
The fix: First shut down and unplug the computer. For a plastic screen (the matte kind on certain models), mix equal parts 99 percent isopropyl alcohol and distilled water in a spray bottle, says Derek Meister, a Best Buy Geek Squad agent. Lightly spritz the solution onto a microfiber cloth and gently rub the marks in a circular motion until the color transfers to the fabric. Wipe away any residue with distilled water. For alcohol-sensitive glass screens (on Apple products and other high-end models), follow the same process, but in place of the solution, use an electronics spray, such as appleJuce ($13, ajcleaner.com), says Ayus Kennedy, a specialist at Tekserve, an Apple service center in New York City.
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