KB4522355 updates Windows 10 19H1 to Build 18362.449 – 24 Oct 2019

Microsoft rolls KB4522355 cumulative update for Windows 10 19H1 users which upgrades the existing 1903 OS to Build 18362.449. The Company introduces several new fixes and enhancements for Start & Search, Microsoft apps, Magnifier, AppLocker, and .exe apps. Besides, the team resolves error messages like code: -2147483645, 1359: an internal error occurred, and others on this non-security patch.

Users can get the KB4522355 by checking for updates under the Windows Update section. They may also install the patch by downloading offline installers. The experts address a long-time occurring error that hampers CPU usage. In addition to these; Start menu, the Cortana Search bar, Tray icons will respond more smoothly after installing this 24th Oct patch. Let’s explore this cumulative update in detail-


General Fixes and Improvements on KB4522355 

Here are the key features that came along with this Oct 24 patch update-

Start and Search

  • Addresses the underlying cause behind the Start menu, the Cortana Search bar, Tray icons, or Microsoft Edge responding arbitrarily in certain scenarios after installing a monthly update.
  • Works upon a bug that results in let your system stop responding at the sign-in screen. 
  • Resolves an anomaly with the multifactor unlock policy of Windows Hello for Business, which fails to show the default sign-in option on Windows 10 devices. 
  • Rectifies a bug that causes Windows Search to close unexpectedly when a Group Policy applies sub-groups to the Start menu layout. 
  • Improves the time zone information for Norfolk Island, Australia as well as for the Fiji Islands. 
  • Resolves the behavior anomaly of the Origin HTTP header when you use Internet Explorer to make cross-origin resource sharing (CORS) requests to redirect resources in internal subnets. 
  • KB4522355 addresses a bug that involves syncing settings of the Accounts page. This occurs when users disable a particular group policy “Continue experiences on this device”.
  • Improves the screen flickering issues that occur when one uses application thumbnails on high dots per inch (DPI) monitors. 

Microsoft Narrator, Magnifier, AppLocker, Windows Server

  • Rectifies an issue that prevents Microsoft Narrator from working in certain touch mode scenarios. 
  • Usually, the Ease of Access Center setting requires assistive technology to start before signing into either Microsoft Narrator, Magnifier, or NVDA. However, there appears an issue that results AT to start after signing into the above apps. The company has addressed this issue for now.
  • Works upon an anomaly that causes Microsoft Narrator to stop working in the middle of a user session in certain scenarios. 
  • Rectifies an issue that causes Magnifier to stop working in a few cases, and the user must restart it manually. 
  • Addresses an anomaly of the Microsoft AppLocker that prohibits an application from running or log a false positive error instead of running the application. 
  • Rectifies an issue that causes Microsoft SharePoint file names to appear incorrectly in the Quick access and Recent items folders. 
  • Addresses an anomaly that prevents IE from opening when Microsoft User Experience Virtualization (UE-V) is being used to roam many favorites. 
  • Rectifies the AppContainer firewall rules that leak when guest users or mandatory user profile users sign in and sign out from Windows Server. 
  • Addresses a bug that prohibits the Unified Write Filter (UWF) servicing mode of Windows Update from working with the Windows Server Update Services (WSUS) server. 
  • The company resolves an anomaly that prevents users from reducing the size of a window in some cases. 

.Exe and other Application Fixes

  • Resolves the anomaly that results in Microsoft Windows Search Indexer “searchindexer.exe” to add or repair required access control lists (ACLs) without checking if ACLs exist. 
  • Earlier, there was high CPU utilization while being in Desktop Window Manager (dwm.exe) after you disconnect from a Remote Desktop Protocol (RDP) session. The company has addressed this bug.
  • Rectifies an issue that prohibits netdom.exe from displaying the new ticket-granting ticket (TGT) delegation bit for the display or query mode.
  • Addresses an anomaly that prevents you from establishing a virtual private network (VPN) connections. 
  • Improves the Win32 apps control anomaly that fails to render correctly while starting a logoff script using the “Run shutdown scripts visible” policy.
  • KB4522355 addresses the system running slow issue on account of installing several fonts.
  • Resolves the incorrect permissions anomaly on a user’s class registry keys that prohibits users from opening files, links, and applications. 
  • Rectifies a bug that causes the tile for the Photos app to appear larger than expected in the Start menu under certain conditions. 
  • KB4522355 resolves an error in which the pszTargetName parameter was set incorrectly in the InitializeSecurityContext() API.
  • Usually, Direct Access servers use huge amount of non-paged pool memory (pooltag: NDnd) that results in the system becoming too slow. The team has resolved this bug as well.
  • Improves the reliability issues of the UE-V AppMonitor. 
  • Addresses an anomaly that disrupts window ordering after tooltips appear in the RemoteApp window. 
  • Improves the apps and scripts that call the WinNT provider or the NetQueryDisplayInformation API equivalent. They might fail to return results after the first page of data, often 50 or 100 entries. When requesting additional pages, you might receive the error, “1359: an internal error occurred.” 

Some other fixes

  • When users start any application after turning On either NT Virtual DOS Machine (NTVDM) or the legacy console mode, there arises an error message. Microsoft has resolved this particular bug. 
    • The error message is, "OACClearArry: Cannot connect to Trace32 OLE Automation server. Error code: -2147483645." 
  • Updates the command prompt so that there doesn’t appear any issue while setting a default color for the color commands in the console.
  • Rectifies a bug that prevents the scroll bar from being picked out when an ActiveX control implements the CScrollView class. This happens when one moves the Internet Explorer window, which then moves the scroll bar to the left. 
  • Build 18362.449 resolves an issue that allows the system to go to Sleep (S3) after two minutes of inactivity even if you configure the sleep timer to never sleep. 
  • KB4522355 addresses a bug that restricts you from retrieving the correct Dynamic Host Configuration Protocol (DHCP) information by setting the DHCP as per
    • LeaseTerminatesTime and LeaseObatinedTime parameters to the correct format.
  • Improves the diagnostic data processing whenever a device is set to Basic and has access over the several diagnostic data.
  • Resolves an anomaly that results in all Transmission Control Protocol (TCP) dynamic ports to be consumed. That’s why network communications fail for any protocol or operation using dynamic ports. 
  • Upgrades the access control list (ACL) check for Known Folders so as to avoid a black screen that may appear the first time a user logins after installing a feature or quality update. 
  • Rectifies a bug evaluating the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows. 
  • The team improves the Autopilot self-deploying mode as well as White glove deployments.

Known issues

At present, the company is not aware of any issues with this KB4522355 cumulative update.

How to get KB4522355 patch update

Before proceeding further, make sure to install the following Servicing stack updates on your PC-

1. Through Windows Update

You will auto receive the new patch update KB4522355 on your respective Windows 10 1809 series PCs through Windows Update. Additionally, you may download the patch update manually as well by visiting the following address-

Settings (Win+I) > Update & Security > Windows Update

After you reach the above location, press Check for updates option.

2. Through the Update Catalog

Download the Standalone Package for Windows 10 version: 1903.

3. Via Windows Server Update Services (WSUS)

If you configure Products and Classifications as described below, KB4522355 will auto-synchronize with WSUS.

  • Product: Windows 10
  • Classification: Security Updates

SourceMicrosoft Update Catalog