The extent of the issue with the automatic installation of the KB5026446 preview update is unclear, but it is definitely affecting a number of users. Windows Latest suggests that if users notice the update installing when they check for updates, they can cancel the installation by selecting ‘Pause Updates.’ This workaround may be helpful to keep in mind.
One theory is that this unexpected installation may be linked to users who have selected the option in Windows 11 to ‘Get the latest updates as soon as they’re available.’ Enabling this option is necessary to access the new features of Moment 3 in KB5026446. However, even if users have chosen this option, they should not be subjected to the automatic installation of an optional update without any warning, especially when they haven’t actively checked for updates.
