Hello there, @Irandolph.
I appreciate you switching the setting to prevent future memorized transactions from showing under the Reminders window.
At this time, there is no other way to clear the list that pops up during QuickBooks startup. I’m taking note of this and passing it along here on my end.
In the meantime, I recommend performing the other workarounds shared by one of our Community Backers above. For more information, check out this article: Create, edit, or delete memorized transactions.
That should do it. Leave a comment below if you need anything else. I’m always here to help. Take care!
