The Boards Manager provides the most convenient way to remove unwanted or unused boards. The location of the installed cores can be found here.

The following instructions to uninstall are not limited to the core in this example; they are equally applicable to both official Arduino and third-party cores.

In this article:

• Uninstall using the Boards Manager
• Uninstall by directly deleting files

Uninstall using the Boards Manager

The Boards Manager provides the most convenient way to remove unwanted or unused boards.

1. In the menu bar, select Tools > Board > Boards Manager…, or click on the button in the sidebar.

2. Filter the results by typing in the text field, and find the board package you want to uninstall.

3. Click the Remove button.

   

4. Confirm that you want to uninstall the library by clicking Yes.

5. Wait while Arduino IDE uninstalls the board package.

Uninstall by directly deleting files

The files can also be removed directly with your system’s file manager application:

1. Open the Arduino15 folder.

2. Open the packages subfolder.

3. Open the package vendor’s subfolder, e.g. arduino, or adafruit.

4. Open the hardware subfolder. This folder contains the board packages.

5. Remove any/all folders within.

Further reading

• Add boards to Arduino IDE