On Windows, there are three ways of content being displayed on screen. The the default is software, which is slower, but the most compatible. There are two other options that are faster: OpenGL and ANGLE. They are faster, but they may not work, or may cause display issues such as missing menubars, blank windows, and so on. Which one works best will depend on your computer.
The display driver can be adjusted via the Tools>Preferences menu. Make sure you restart Anki after adjusting it.
If you’re unable to get to Anki’s preferences screen, and restarting Anki a few times does not help, you may need to manually adjust the graphics driver. You can do this by starting cmd.exe and typing the following:
echo auto > %APPDATA%\Anki2\gldriver
The default is
software; the other two drivers you can try are