Yes, once you have set the applications in the startup list, you can alter the settings as well. You can reset the list and can remove all the unwanted applications from the list. Here’s how you can do this-
You can simply make it done by deleting the shortcuts you have created in the start-up folder. For this, you will require an administrative privilege to do so.
Alternatively, you can disable the programs using the settings of your startup menu.
Also, it can be achieved by deleting the startup configurations within the task manager. Viewing the entire list of applications enable in the startup folder.
Select the ones you want to remove and start disabling them one by one.