Can I schedule scans with Windows Defender?

No problem, take whatever time you need.
Sorry, i know i ask too many questions

My main question is my first

Are you saying the built in WD scheduled scan runs without errors, but you still get alerts that you need to run a scan ?

Hello everyone,
This is my first post to tenforums and first of all I'd like to introduce myself.

I'm hoping someone can assist me with my issue. Basically I have created a scheduled task following the exact process in this thread for Windows Defender with the exception of the arguments; I have made mine perform a full scan rather than a quick scan.

For anyone who is unaware how to so this, you simply add '-ScanType 2' to the existing argument instructed in a previous post minus the quotation marks.

The issue I am having is when the task is executed, it works as expected given that Windows Defender is already open, it doesn't however appear to do anything if it is not. Please correct me if I am wrong but it was to my understanding the task script would start Windows Defender and perform a scan in the background, yet it only performs the latter. Does anyone know of a way I can schedule Windows Defender to automatically run and perform a full scan in the background?
Thanks in advance!

Regards
Wh0pper28