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February 27, 2020—KB4535996 (OS Builds 18362.693 and 18363.693)
https://support.microsoft.com/en-us/help/4535996/windows-10-update-kb4535996
Highlights
Updates an issue that prevents the speech platform application from opening for several minutes in a high noise environment.
Updates an issue that reduces the image quality in the Windows Mixed Reality (WMR) home environment.
Updates an issue that might prevent ActiveX content from loading.
Improves the battery performance during Modern Standby mode.
Updates an issue that causes Microsoft Narrator to stop working when a user session is longer than 30 minutes.
Addresses an issue that adds an unwanted keyboard layout as the default after an upgrade even if you have already removed it.
Updates an issue that prevents the Windows Search box from rendering properly.
Updates an issue that prevents the printer settings user interface from displaying properly.
Updates an issue that prevents some applications from printing to network printers.
For other Improvements and fixes please refer to Support Article linked above.
February 27, 2020-KB4537572 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 1903 and Windows Server 1903 RTM and Windows 10, version 1909 and Windows Server, version 1909
https://support.microsoft.com/en-us/help/4537572/kb4537572-cumulative-update-for-net-framework
For Quality and reliability improvements please refer to Support Article linked above.
Edit: For further information on Optional Updates refer to post of Sumit - Insider MVP in this thread.
Edit 2.0: Additional update for Windows Defender.
KB4052623 Update for Windows Defender antimalware platform
https://support.microsoft.com/en-us/help/4052623/update-for-windows-defender-antimalware-platform
This package includes monthly updates and fixes to the Windows Defender antimalware platform that is used by Windows Defender Antivirus in Windows 10.
Monthly updates are installed in addition to major Windows 10 releases. Both types of updates should be installed to ensure continued protection against malware and other threats.
~bhringer
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
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I have a problem on the latest version. When you type some apps on your search bar, it wont show up. Like for example calculator, alarm voice recorder ect.. Can you roll fix the search button coz now it will take time to just look for the app you want. because the previews updates don't have problem on typing those apps and they will appear there.
If you can, go back to Win 7 OS it's stable and get rid of Win 10 OS (problems, problems). Cortana, Edge to name a couple of problem areas.
I am replying to this comment as it is the final one in the thread.
Wanted to add my own experiences with this update.
I have been getting very high latency in the ndis.sys driver since updating, to the point where audio is stuttering so badly it is unusable.
Disabling the wifi adapter stops this (as it stops ndis.sys working).
I have found through latency monitoring, that this issue presents itself most commonly on start up, and then if the wifi adapter is turned off, then on again around 3 or 4 times, slowly, for a few minutes, the ndis.sys driver stabilises and remains stable for hours on end.
Weird, and definitely 100% started when the update processed on my system.
Yes, if someone is presenting a misdiagnosis of their issues it could be an update issue, but there's no reason to say that the bugs are inaccurately reported to make it fit a narrative. I'd love to just fix this guy's PC for him, free if it's because of the update.
Different article, one by techradar. Sorry for the ambiguity.
