Security News > 2020 > December > Windows 10 Cumulative Updates KB4592449 & KB4592438 released
The first batch of security updates or 'B' updates for the month of 'December 2020' is now available for all supported versions of Windows 10 including version 20H2. If you want to grab these updates, check for updates in the Settings and the update will begin installing.
Below is the list of all new updates for Windows 10.
System and user certificates might be lost when updating a device from Windows 10, version 1809 or later to a later version of Windows 10.
Devices will only be impacted if they have already installed any Latest cumulative update released September 16, 2020 or later and then proceed to update to a later version of Windows 10 from media or an installation source which does not have an LCU released October 13, 2020 or later integrated.
Note Devices using Windows Update for Business or that connect directly to Windows Update are not impacted.
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