Windows 10 Updates became a game of chance. You almost never know when an update will break anything and make your computer unusable. While Microsoft is trying to fix things afterwards, often damage is already done. Microsoft is now taking the initiative to alert users that the upcoming update may cause Bluetooth devices to lose their connection to Windows computers. And no, it is not a mistake, it is a function.
Updates seemed harmless enough. They contained the usual bug fixes, including security patches for known vulnerabilities. One of them, however, includes the disadvantage described in CVE-2019-2102, where Bluetooth Low Energy connections can be used to remotely send random keystrokes, all without any interaction with the user.
Unfortunately, for users, the only means Microsoft can provide is to tell them to contact the Bluetooth device provider. To be honest, he has no choice but to close this security hole or compromise Windows users. But this does not make it less convenient for them.
It may be possible for users to opt out of installing these updates, but it also opens a different worm box. On the one hand, users will not know which devices are affected while the update is still not applied. Equally important that not installing these updates can leave them vulnerable to other errors.