Cumulative Updates - February 27, 2020 - KB4535996 Optional

February 27, 2020—KB4535996 (OS Builds 18362.693 and 18363.693)


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

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

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.


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Windows started freezing randomly

Please stop pushing updates on me!  I am tired of them. I like the way Windows runs right now...I am not a Luddite, I just don't want the any more wonkyness or weird Chromium hybrid crapshoots.  Please, let me be!  In seven days, I don't want to have this argument again!  If I have to, I'll look for legal means....please just stop!!!

Or at least let the updates process take place when the PC is turned off. 

I just had this update on my PC and now it will not boot. Fails the BIOS POST test with a series of beeps, completely blank screen.

I bought it only 5 days ago, have tried re-seating the RAM and GPU.

Hard to decipher the beeps as the screen is blank and I dont know what MB make it is. (8 regular slow beeps. Then a repeat of two slow low tone beeps, two fast high tone beeps - if that means anything to anyone!)

I did have some important work to do, but I guess not, thanks microsoft :(

I presume there is no way to fix this and the PC is now dead, as it wont ever boot up again now, to receive a Windows update fix ... to fix this "update fix"?

Well, ONE part of this update is optional and is offered as such. The rest isn't.


Well, how does one selectively NOT install optional updates?

Tried to install kb4535996 but it failed. Windows said to restart computer and try again. I did, windows updates says this update FAILED to install but when I check for "UPDATES in settings, it states I'm up do date.

What gives ???--- and how do I see if this item did install on my PC as its listed in the"uninstall now area"--- just simply do not know if it's installed.

Any advice from Microsoft or the gentleman that has his Youtube channel " windows and computer" updats ?

Thanks for any advice or if others have had the same problem.

PS-- my computer is running ok but it states in "Settings" that this update FAILED!!!


I recently updated to the kb4535996 and has problems

Cause my screen to flicker after log in.

This update has messed up my windows os. I can't open any applications and Windows powershell(admin). Only browser works. What a mess this Windows update has made. How to fix this issue?? 

There are still problems with this version 2004 19041.113  - when I put the PC to sleep and wake him up,  ONLY starts with no VIDEO - Black screen ONLY.

I have blocked all Updates. 

 Windows Update Medic is deceased .


What is sad is that we have to do this because you keep pushing poison apple on us.

Borg, we will Not assimilate willingly.

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Last updated October 23, 2020 Views 24,727 Applies to: