KB4503294

• Addresses an issue that causes system processes to stop working when loading ole32.dll and tracking is enabled.

• Addresses an issue that prevents the Calculator application from following the Gannen setting when it is enabled. For more information, see KB4469068.

• Addresses an issue that prevents Microsoft Edge from opening properly in certain scenarios when you select a link within an application.

• Addresses an issue that may cause the UI to stop responding for several seconds when scrolling in windows that have many child windows.

• Addresses a desktop and taskbar flickering issue on Windows Server 2019 Terminal Server that occurs when using User Profile Disks.

• Addresses an issue that causes a loss of audio when Windows hasn't been restarted for more than 50 days.

• Addresses an issue with evaluating the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.

• Addresses an issue that returns an error when using certutil.exe to verify a certificate. The error is “Cannot find object or property. 0x80092004 (-2146885628 CRYPT_E_NOT_FOUND)”.

• Addresses an issue with using Data Protection Application Programming Interface NG (DPAPI-NG) or a group-protected Personal Information Exchange Format (PFX) file. Data you protected using one of these mechanisms on Windows 10, version 1607 and Windows Server 2016 or earlier cannot be decrypted using Windows 10, version 1703 or later.

• Adds support for a customer configurable safe list for ActiveX controls when using Windows Defender Application Control. For more information, see Allow COM object registration in a Windows Defender Application Control policy.

• Addresses an issue that prevents a user from signing in to a Microsoft Surface Hub device with an Azure Active Directory account. This issue occurs because a previous session did not end successfully.

• Addresses an issue that causes Disk Management and DiskPart to stop responding when presenting some removable disks to Windows.

• Addresses an issue that sends all input and output to the Non-Volatile Memory (NVMe) driver, which causes the system to stop working.

• Addresses an issue that causes the REFS.sys driver to stop working.

• Reinforces the Certificate Revocation List (CRL) on Internet Key Exchange version 2 (IKEv2) machines for certificate-based virtual private network (VPN) connections, such as Device Tunnel, in an Always On VPN deployment.

• Addresses high latency Active Directory Federation Services (AD FS) response times for globally distributed datacenters that may have SQL servers in remote datacenters. This improves the performance for all token requests coming to ADFS, which includes OAuth, Saml, Ws-Fed, and Ws-Trust.

• Addresses an issue that may cause a Lightweight Directory Access Protocol (LDAP) paged search against a Windows 2016 Domain Controller to fail. The error message is “00000057: LdapErr: DSID-0C090AB0, comment: Error processing control, data 0, v3839.”

• Disables Microsoft Visual Basic Script (VBScript) by default in the Internet and Restricted sites zones in Internet Explorer and the WebBrowser control.

• Addresses an issue with programmatic scrolling in Internet Explorer 11.

• Addresses an issue that may display the error, “MMC has detected an error in a snap-in and will unload it.” when you try to expand, view, or create Custom Views in Event Viewer. Additionally, the application may stop responding or close. You may also receive the same error when using Filter Current Log in the Action menu with built-in views or logs.

• Addresses a reliability issue with automatically starting a virtual machine (VM) after enabling Hyper-V Replica.

• Enables Hygon C86 7xxx processor support on Windows Server 2016 for the China market only.

• Addresses an issue in Windows Update that may cause proxy server resolution to fail.