Download KB5012599 Offline Installer, Windows 10

KB5012599 is out in the wild for Windows 10 users. Here are the links to download KB5012599 offline installer for Windows 10.

As with most cumulative updates, the KB5012599 is heading to all Windows 10 users with many improvements and fixes this patch Tuesday. What’s more, the update also includes one new feature. If you were wondering, the feature, improvements, and fixes are already available to users who have installed the previous optional update KB5011543 for Windows 10. In addition to all this, the KB5012599 also includes a security patch. So, this is not only a security update but includes several enhancements and fixes.

Some of the fixes and improvements are useful and increase the overall system stability. Some of those improvements and fixes include but are not limited to things like File Explorer, built-in search indexer, group policy editor, Microsoft account, user access control, domain control, outlook, Microsoft teams, NetBIOS, DNS, and more. For the security patch, this update fixes the Denial of Service vulnerability on Cluster Shared Volumes in Windows 10.

As for the newly introduced feature, the KB5012599 update adds the Search highlights feature to all serviceable Windows 10 builds. Thanks to this feature, Windows 10 Start menu search can now show additional information when searching web and local files.

As you can see, the KB5012599 is pretty packed and loaded with improvements, fixes, new features, and security patches. So it is recommended that you install the update as soon as possible. Thankfully, the KB5012599 update should be automatically installed for most Windows 10 users. In cases where it doesn’t, you can download the KB5012599 offline installer to install it manually. The offline installer is also helpful to install the update on an offline machine or system with Windows 10 auto-update problems.

Download KB5012599 offline installer

As always, the KB5012599 update is available as an offline installer via the Microsoft Update Catalog website.

Go to this webpage, find your Windows 10 version, and click the “Download” button next. Another window or tab will open. Click the available link, and the offline installer is downloaded to your computer. After downloading, double-click on the installer and follow the wizard to install KB5012599. Remember that the update will only install if it is supported. Also, it might download additional updates or dependencies if required.

KB5012599 changelog

  • Addresses an issue that causes a Denial of Service vulnerability on Cluster Shared Volumes (CSV). For more information, see CVE-2020-26784.

  • New! Introducing search highlights

    Search highlights will present notable and interesting moments of what’s special about each day—like holidays, anniversaries, and other educational moments in time both globally and in your region. To see more details at a glance, hover, click, or tap on the illustration in the search box.

    For enterprise customers, search highlights will also feature the latest updates from your organization and suggest people, files, and more.

    Search highlights will roll out to Windows 10 customers over the next several weeks. We are taking a phased and measured approach. Broad availability will occur in the coming months. For more information, see Group configuration: search highlights in Windows.

  • New! Provides the ability to change the color of toast buttons to identify success and critical scenarios more easily for apps that send notifications using Windows notifications in the OS. This feature also makes notifications more visually compact.

  • New! Adds a new policy that expands an app’s top three notifications by default in the Action Center for apps that send notifications using Windows notifications in the OS. This feature displays multiple notifications that you can interact with simultaneously.

  • Addresses an issue that causes searchindexer.exe to stop responding during a dismount operation in the Remote Desktop setup environment.

  • Addresses an issue that affects searchindexer.exe and prevents Microsoft Outlook’s offline search from returning recent emails.

  • Addresses an issue that might deactivate Windows when you change the National Language Support (NLS) version from 6.3 to 6.2.

  • Addresses an issue in which modern browsers fail to correctly render HTML that is generated by gpresult/h.

  • Addresses an issue that causes an “Access denied” exception for a file during a PowerShell test for AppLocker.

  • Addresses an issue that might cause the Group Policy Service to stop processing telemetry information for Group Policy Registry Preferences.

  • Addresses an issue that might prevent a DNS Server query resolution policy from working as expected when you specify a fully qualified domain name (FQDN) and subnet conditions.

  • Addresses a heap leak in PacRequestorEnforcement that degrades the performance of a domain controller.

  • Addresses an issue that affects the Key Distribution Center (KDC) Proxy. The KDC Proxy cannot properly obtain Kerberos tickets for signing in to Key Trust Windows Hello for Business.

  • Adds support for Microsoft Account (MSA) Pass-through scenarios in Azure Active Directory (AAD) Web Account Manager (WAM).

  • Addresses an issue that logs Event ID 37 during certain password change scenarios, including failover cluster name object (CNO) or virtual computer object (VCO) password changes.

  • Addresses an issue that might unintentionally add a Trusted Platform Module (TPM) protector when you use the Silent BitLocker enablement policy.

  • Addresses an issue that prevents the User Account Control (UAC) dialog from correctly showing the application that is requesting elevated privileges.

  • Addresses an issue that causes the Move-ADObject command to fail when you move computer accounts across domains. The error message is, “Multiple values were specified for an attribute that can have only one value”.

  • Addresses an issue that prevents Event 4739 from displaying the new values of certain attributes after a policy change.

  • Addresses an issue that prevents Android device users from signing in to some Microsoft applications, such as Microsoft Outlook or Microsoft Teams. This issue occurs after rolling over token signing and decrypting certificates, resetting a user’s password, or when an administrator has revoked refresh tokens.

  • Addresses an issue that might cause domain joining to fail in environments that use disjoint DNS hostnames.

  • Addresses an issue that prevents the Back button of the credentials window, where you sign in, from being visible in high contrast black mode.

  • Addresses an issue that prevents you from accessing Server Message Block (SMB) shares using an IP Address when SMB hardening is enabled.

  • Addresses an issue that occurs when the Best Practices Analyzer (BPA) values for SMB have not been updated for more recent platforms.

  • Addresses an issue that causes stop error 0x1E in the SMB Server (srv2.sys).

  • Addresses an issue that causes a mismatch between NetBIOS and DNS Active Directory domain names when you create a cluster.

  • Addresses an issue that causes the Network File System (NFS) redirector to stop working (error 0x50) when you convert a text file to a PDF.

  • Addresses a known issue that might cause some devices to receive error messages on a blue screen when those devices are paired to Bluetooth devices. This issue occurs when certain configuration service provider (CSP) policies are in place that affect the Bluetooth A2dp profile.

That is it.

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