1)

Welcome to MyGuide

In this Guide, we will learn how to uninstall MyGuide package and all its dependencies from the production org

2)

Click on "Setup"

3)

Go to Setup

Opens in a new tab

4)

Enter "Installed Packages" in the quick find box​

5)

Click on "Installed Packages"

6)

Click the name of the package

7)

Click on "Uninstall"

8)

Scroll down and choose an option according to your requirement

9)

Select the checkbox if you are sure about uninstalling this package

It will permanently delete all the associated components

10)

Click on "Uninstall"

11)

You might have to delete the utility bar prior to uninstall

12)

Also, uninstall the connected app

13)

Click on "Uninstall"

14)

Click on "Sales_UtilityBar"

You have to delete the utility bar that you configured earlier

15)

Click "Delete"

16)

Click on "Custom App"

This lightning page is referenced elsewhere in salesforce.com. You have to remove the usage and try again

17)

Select the application in which you had set the utility bar 

18)

Click on "Edit"

19)

Click on "Utility Items"

20)

Click "Remove"

21)

Click on "Save"

22)

Utility bar has been removed and so as the package