After the 30-day trial of MathType, it will start to change into a streamlined version. Many functions cannot be used. If you find a way to delete the registry so that the 30-day trial can be maintained, you can have unlimited free prostitution.
1. Enter regedit on the command line of win + R, find the registry, and open the corresponding location.
2. Delete the option6.9 file, restart the computer, and the Mathtype recovery trial period is 30 days. From now on, just delete it once a month.
