Re: Admission
We already know that Microsoft uses the relatively benign phrase "not supported" (as in "Windows 7 is not supported on Kaby Lake and Ryzen") when they really mean something much more sinister, like "we don't care if it works, we're going to sabotage it."
With that in mind, "not compatible" probably means exactly the same thing.
It doesn't seem like Microsoft really has any specific competitive reason to block Kaspersky. Defender doesn't make MS any money... it's an antimalware program of last resort, something to fill the gap if the user doesn't provide something else. It's not like Internet Explorer, where MS hoped to leverage their browser dominance to push proprietary WWW extensions and sell more Frontpage and IIS server packages that supported those extensions.
Similarly, there's no great reason for MS to remove things like Speccy, Classic Shell, or CCleaner. They don't have competing products for any of those things.
To me, these seemingly random uninstallations, along with the unwanted download/installation of apps (and other assorted things) seem to be a display of MS marking its territory. Your formerly personal computer is now Microsoft's territory, and MS wants to make damn sure you are aware of it. For now, they're removing stuff that MS doesn't have a direct competitor for... once people have gotten used to MS removing stuff and accepted it as the new normal, who knows?
Biting the hand that feeds IT
