Hello hansvandermeyden,
I'm John an Independent Advisor and a Microsoft user like you. I'll be happy to assist you today. I understand you want to uninstall Windows Fax and Scan app.
Kindly try the following methods below
Press Start then search 'Manage optional features'
Find Windows Fax and Scan in the list then click Uninstall
Restart your PC
Kindly let me know if this helps or if you have any further concerns.
Sincerely,
John DeV
Independent Advisor