There are many places within Windows 10 that can potentially be the source of those advertisements, but I believe that the modification you want is as follows:
- Navigate to Settings > System > Notifications & actions
- Select Off for
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That being said, with just a bit more time and effort you can be much more thorough when it comes to eliminating obtrusive Windows 10 advertisements by implementing the following changes:
Disable Lock Screen Ads
- Navigate to Settings > Personalization > Lock screen
- Set the
Background
to Picture or Slideshow instead of Windows Spotlight
- Select Off for
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Stop Suggested Apps From Appearing in the Start Menu
- Navigate to Settings > Personalization > Start
- Select Off for
Show suggestions occasionally in Start
Turn Off Ads from Windows Welcome Experience
- Navigate to Settings > System > Notifications & actions
- Select Off for
Show me the Windows welcome experience after updates and occasionally when I sign in to highlight what’s new and suggested
Turn Off Ads in File Explorer
- At the top of the
File Explorer
window click on View
- Click on the Options button on the right side of the ribbon
- In the subsequent
Folder Options
window click on the View tab
- Scroll down the list of
Advanced settings
and uncheck Show sync provider notifications
- Click the OK button to close the window
Remove Ads From the Windows Ink Workspace
- Navigate to Settings > Devices > Pen & Windows Ink
- Select Off for
Show recommended app suggestions
Together, these adjustments should eliminate the most prolific built-in Windows 10 advertisements.
Sources:
Disable Advertising in Windows 10
How to Disable All of Windows 10’s Built-in Advertising
2Windows 10 isn't operation system anymore in sense of "you are the owner", that progressively taking out control from owners and becoming more like Android locked downed OS. It becomes more like advertisement station with built in A.I. that your training for Microsoft. While there are still possibility to take a little control back, Microsoft forcibly will revert most of tweaks back on update since they feel like they are the owner, not you. If you really want to still use this "OS", you can get server's version which is more expensive but at least giving more control over it "genius" software – Alex – 2018-08-13T20:32:34.060