Turning OFF iCloud Reminders

Hi Airbiscuit1981,

Turn them off by using a Windows 10 feature:

1. Go to Start menu (Windows Key/click the flag) and open Settings.
2. Click System.
3. Hit Notifications & Actions.
4. Scroll down to 'Show notifications from these apps'.
5. Click on iCloud and select the option you want.

Please let me know if there are any further questions.

This is only a temporary solution because the next time you start your computer, it is back again. It's like Apple has a way around the OS settings.