how to disable definitively screenpad

[luca_marin2]

System: win 10 pro fresh install
Battery or AC: both
Model: ux580ge
Frequency of occurrence: always
Reset OS:
Screenshot or video:
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Detailed description：
i'd like to disable definitively screenpad as monitor. Every time i startup, the system recognize screenpad as primary monitor forcing me to change it manually every time.
Thanks....

[Blake_ASUS]

Hello luca.marin2,
May you provide the screenshot of below route when you boot the device and screenpad turned on?
Setting>System Multiple Display
Thank you very much.