What causes the small window icon to become garbled

Q: I am using the computer due to power outages caused by abnormal shutdown, restart Windows XP found in the application window to minimize, maximize and turn off button small icon some become 1, 2, 3, and some have been changed to be a question mark or garbled. Excuse me, how is this going to work out?

A: This is a common failure of Windows XP because the abnormal shutdown causes the graphics library on the system to be displayed on the minimized, maximized, and closed buttons to be lost or corrupted. The solution to this problem is to find a font file named Marlett.ttf on a computer that has the same operating system installed and copy it to the folder of your own computer system installation partition. Another way is to restart the operating system, press the F8 key to pull out the system menu before booting, then select "Safe Mode" to start the system, then the normal exit in "Safe Mode", and then restart the system, which can generally solve the problem.