Brother P-Touch 2420PC Quick Reference Manual page 17

If "Delete Brother PT-2420PC" was selected:
A dialogue box appears, asking for
confirmation to delete all PT-2420PC printer
drivers.
Click the Yes button. A dialogue box appears,
showing that the printer drivers have been
deleted.
Click the Finish button. If a dialogue box
appears, explaining that the computer should
be restarted, select the option for restarting
the computer, and then click the Finish
button.
13