Windows 10 update KB4535996 releases for version 1909 and 1903

Microsoft is now rolling out update KB4535996 to address a number of issues with devices running Windows 10 version 1909 and version 1903.

KB4535996 bumps the version number to build 18362.693 and 18363.693 for the May 2019 Update and November 2019 Update respectively, and according to the company fixes problems with battery performance for devices using Modern Standby mode, unwanted keyboard layout as the default after an upgrade, and image quality in the Windows Mixed Reality (WMR) home environment.

In addition, the update introduces fixes to prevent the Windows Search box from rendering properly, the printer settings user interface from displaying properly, applications from printing to network printers, and prevent ActiveX content from loading.

Update KB4535996 for Windows 10 version 1903 and 1909

Microsoft has announced KB4535996 in the Windows support site, and it’s referred as “February 27, 2020—KB4535996 (OS Builds 18362.693 and 18363.693).” If you’re already running the Windows 10 May 2019 Update or the November 2019 Update on your device, this update will address these problems:

Fixes a problem that prevents the speech platform application from opening for several minutes in a high noise environment.
Addresses an issue that reduces the image quality in the Windows Mixed Reality (WMR) home environment.
Improves Urlmon resiliency when receiving incorrect Content-Length for a PeerDist response.
Fixes a problem with rendering PeerDist-encoded content in Internet Explorer and Microsoft Edge.
Addresses an issue that might prevent ActiveX content from loading.
Fixes a problem that might cause Microsoft browsers to bypass proxy servers.
Improves the battery performance during Modern Standby mode.
Addresses an issue that prevents Centennial apps from opening in certain scenarios.
Fixes a problem that prevents the OpenFile() function in the KernelBase.dll library from handling file paths longer than 128 characters.
Addresses an issue that prevents a user from upgrading or uninstalling some Universal Windows Platforms (UWP) apps in certain scenarios.
Fixes a problem 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 or migration even if you have already removed it.
Fixes a problem with editing the properties of .mov files.
Addresses an issue that causes usbvideo.sys to stop working intermittently when a device resumes from Suspend or Sleep after using the Camera app or Windows Hello.
Fixes a problem that might prevent the “Allow uninstallation of language features when a language is uninstalled” Group Policy from taking effect.
Addresses an issue that prevents the Windows Search box from rendering fully in the space allotted for it.
Fixes a problem that prevents the Input Method Editor (IME) user dictionary from being used when leveraging folder redirection with user profiles.
Addresses an issue that might prevent the Windows Search box from showing results.
Fixes a problem that causes the installation process to stop responding when installing Windows on a VMware guest machine that has a USB 3.0 hub attached.
Addresses an issue with Windows Autopilot self-deploying mode and white glove deployment.
Fixes a problem in which re-running PowerShell workflows might fail with compilation errors for long sessions.
Improves Event Forwarding scalability to ensure thread safety and increase resources.
Addresses an issue in the Windows activation troubleshooter that prevents users from reactivating their copy of Windows using the product key stored in their Managed Service Account (MSA).
Fixes a problem that prevents some applications, which are deployed using the Microsoft Installer (MSI) from being installed using the mobile device management (MDM) platform.
Addresses an issue that generates an “unknown username or bad password” error when attempting to sign in. This occurs in an environment that has a Windows Server 2003 domain controller (DC) and a Windows Server 2016 or later DC.
Fixes a problem with sign in scripts that fail to run when a user signs in or signs out.
Addresses an issue that continues to collect IsTouchCapable and GetSystemSku data when they should no longer be collected.
Fixes a problem that causes some Azure Active Directory (AAD) joined systems, which were upgraded to Windows 10, version 1903, to erroneously rejoin the AAD domain.
Addresses an issue in which the WinHTTP AutoProxy service does not comply with the value set for the maximum Time To Live (TTL) on the Proxy Auto-Configuration (PAC) file.
Fixes a problem that causes the wrong printer name to be selected when you click the Print button in the SQL reporting service.
Addresses an issue that prevents the printer settings user interface from displaying properly.
Fixes a problem in the Network Profile Service that might cause a computer to stop responding.
Addresses an issue that prevents some applications from printing to network printers.
Fixes a problem that might cause a printer to be a hidden device in Device Manager after a restart.
Addresses an issue that causes Host Networking Service (HNS) PortMapping policies to leak when the container host is reinstated after a restart.
Addresses a stop error (0x000000CA) that occurs when you mount a Resilient File System (ReFS) volume without a physical device.
Addresses an Open Database Connectivity (ODBC) issue that causes an infinite loop in the retry logic when there are several lost connections in the connection pool.
Fixes a problem that causes the Local Security Authority Subsystem Service (LSASS) to stop working and triggers a restart of the system.
Addresses an issue that intermittently generates Online Certificate Status Protocol (OSCP) Responder audit event 5125 to indicate that a request was submitted to the OCSP Responder Service.
Fixes a problem that causes queries against large keys on Ntds.dit to fail with the error, “MAPI_E_NOT_ENOUGH_RESOURCES”.
Addresses an issue that corrupts a log file when a storage volume is full and data is still being written to the Extensible Storage Engine Technology (ESENT) database.
Fixes a problem that causes _NFS4SRV_FILE_CACHE_ENTRY and DirectoryCacheLock to stop responding and leads to error 9E.
Addresses an issue that prevents Server Message Block (SMB) Multichannel from working within a cluster network that has IPv6 Local-Link addresses.
Fixes a problem that might cause Storage Migration Service inventory operations on a Windows Server 2003 source computer to fail in clustered environments.
Addresses a timing issue that may cause stop error 0x27 in mrxsmb20!Smb2InvalidateFileInfoCacheEntry.
Addresses an issue in the Storage Migration Service that causes the Cutover stage to stop working during migration if an administrator assigns a static IP address to the source adapter.
Fixes a problem in which canceling a deduplication (dedup) job to rebuild hotspots prevents other deduplication PowerShell commands from responding.
Addresses an issue that might cause Remote Desktop sessions to disconnect because a leak in system memory occurs when the client window is minimized or maximized.
Fixes a problem that makes the Windows Defender Application Control’s Code Integrity-based events unreadable.
Addresses an issue with certificate validation that causes Internet Explorer mode on Microsoft Edge to fail.

You can download the updates to install them manually for version 1903 with the links below:

KB4535996 64-bit | Download
KB4535996 32-bit | Download

If you’re running version 1909, use these links:

KB4535996 64-bit | Download
KB4535996 32-bit | Download

Uninstall update KB4535996 from Windows 10

If the KB4535996 update is causing issues on your device, you can always uninstall it to revert the changes.

Use these steps to uninstall any quality update on Windows 10:

Open Start.
Search for Command Prompt and click the top result to open the app.
Type the following command to view the update history and press Enter:
```
wmic qfe list brief /format:table
```
Check the Windows Update history of your device, and identify the update by its HotFixID and InstalledOn information.
Type the following command to uninstall the update from your computer and press Enter:
```
wusa /uninstall /kb:4535996
```
In the command, replace “4535996” for KB number that correspond to the update that you’re trying to remove. For instance, if you’re trying to uninstall update KB4535996, then the number that you can have to use in the command is “4535996.”

Uninstall monthly update from Windows 10
Click the Yes button.
Continue with the on-screen directions (if applicable).

Once you complete the steps, the recently installed update will be removed from your computer fixing any issues as a result of the release.

Download February 2020 update for Windows 10

These updates are available immediately, they’ll download and install automatically, but you can always force the update from Settings > Update & Security > Windows Update and clicking the Check for updates button. You can find more details about the most recent updates in the Windows 10 update history tracker guide.