It can be helpful to archive old tests and forms so they don't accidentally get reused when not intentional to do so. The default view on page load is to not show archived tests, but a user can toggle the view option at the top of the page. The action to archive tests and forms is shown in a column in the grid with a slider action. Archived tests/forms show the slider, slid to the right.
To view current and archived tests, go to Test Management > Tests.
Tiny Link: https://support.assessment.pearson.com/x/V4ApCQ