Solution 11360: Cannot Delete the Finance Application On the TI-83 Plus Family And TI-84 Plus Family Graphing Calculators.
Why can't I delete the Finance Application that is on the TI-83 Plus Family and TI-84 Plus Family graphing calculator?
Finance functionality shows up under the Apps list even though this is not an App. This occured when the product shifted from the TI-83 to the TI-83 Plus Family and TI-84 Plus Family.
A spot on the keyboard needed to be freed to be able to add the Apps key. Matrix functionality was moved to the 2nd X-1 location, and the blue Apps key was placed in the TI-83 Matrix position. The Finance functionality is part of the OS and cannot be deleted.
Please see the TI-83 family and TI-84 Plus family guidebooks for additional information.