Security News > 2021 > April > Windows 10 Cumulative Updates KB5001330 & KB5001337 released
As part of the April Patch cycle, Microsoft is rolling out a new cumulative update for all supported version of Windows, including KB5001330 for Windows 10 20H2/2004 and KB5001337 for Windows 10 1909.
Like every Windows Update, you can open the Settings app and click on the Windows Update option to install the patches.
The cumulative update for Windows 10, version 2004 and 20H2 is known as KB5001330 and comes with numerous fixes, improvements, and security updates.
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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