I also haven't seem them, but I think they were removed by this tool: https://www.winprivacy.de/english-home/ (PLEASE, please check before downloading, I installed it a year ago or more, back then it was ok, I can't guarantee how it's now).
This disables a lot of tracking, but I assume, also disables ads. (I've seen only 1 ad, and that was for the OneDrive in explorer).
This disables a lot of tracking, but I assume, also disables ads. (I've seen only 1 ad, and that was for the OneDrive in explorer).