Applications could be removed during an update like MS Paint may disappear at some point:

http://rss.slashdot.org/~r/Slashdot/slashdot/~3/tvYCNl7zUmc/microsoft-paint-to-remain-part-of-windows-10-after-all

Constant issues with updates:

https://www.forbes.com/sites/kevinmurnane/2019/04/14/windows-10-is-doing-a-great-job-persuading-people-to-switch-to-a-different-operating-system/amp/

https://www.forbes.com/sites/gordonkelly/2019/04/17/microsoft-windows-10-problem-update-warning-upgrade-cost/amp/

https://www.pcworld.com/article/3390179/windows-patch-breaking-pcs-mcafee-antivirus-installed.amp.html

Windows 10 now requires a minimum of 32GB storage space

https://www.techspot.com/amp/news/79867-windows-10-now-requires-minimum-32gb-storage-space.html

Outlook.com compromised:

https://www.onmsft.com/news/microsofts-outlook-com-has-been-compromised-for-months-email-addresses-and-subject-lines-and-more-were-left-exposed

Wifi-Password-sharing

https://yro.slashdot.org/story/16/05/11/1625207/microsoft-removes-wi-fi-sense-feature-from-windows-10-which-shared-your-wi-fi-password