Today is Patch Tuesday, the second Tuesday of the month, and it means that all supported versions of Windows are getting updates. For Windows 10, that still means all versions except for 1511, although other versions are restricted to certain devices or SKUs.
As usual, Windows 10 versions 1909 and 1903 get the same update. KB4549951 brings the build number to 18363.778 and 18362.778, respectively. You can manually download it here, and these are the highlights:
- Updates to improve security when using Microsoft Office products.
- Updates to improve security when Windows performs basic operations.
- Updates for storing and managing files.
Here's the full list of fixes:
- Addresses an issue that prevents certain apps from installing if they are published using a Group Policy Object.
- Security updates to the Microsoft Scripting Engine, Windows App Platform and Frameworks, Windows Cloud Infrastructure, Windows Virtualization, Microsoft Graphics Component, Windows Kernel, Windows Media, Windows Shell, Windows Management, Windows Fundamentals, Windows Virtualization, Windows Storage and Filesystems, Windows Update Stack, and the Microsoft JET Database Engine.
Those still on Windows 10 version 1809 will get KB4549949, bringing the build number to 17763.1158. You can manually download it here, and it has the same highlights and fixes. There is one known issue to be aware of though.
| Symptom | Workaround |
|---|---|
| After installing KB4493509, devices with some Asian language packs installed may receive the error, "0x800f0982 - PSFX_E_MATCHING_ COMPONENT_NOT_FOUND." |
Note If reinstalling the language pack does not mitigate the issue, reset your PC as follows:
Microsoft is working on a resolution and will provide an update in an upcoming release. |
Windows 10 version 1803 is only supported for Enterprise and Education SKUs, but those users will get KB4550922, bringing the build number to 17134.1425. You can manually download it here, it has the same highlights as the above updates, but a shorter list of fixes.
- Security updates to the Microsoft Scripting Engine, Windows Kernel, Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Media, Windows Shell, Windows Management, Windows Cloud Infrastructure, Windows Fundamentals, Windows Core Networking, Windows Storage and Filesystems, Windows Update Stack, and the Microsoft JET Database Engine.
This one also has one known issue:
| Symptom | Workaround |
|---|---|
| Devices on a domain might be unable to install apps published using a Group Policy Object (GPO). This issue only affects app installations that use .msi files. It does not affect any other installation methods, such as from the Microsoft Store. |
To mitigate this issue, manually install the app on the device. We are working on a resolution and will provide an update in an upcoming release. |
Windows 10 version 1709 is also only supported for Enterprise and Education SKUs, and those users will get KB4550927, bringing the build number to 16299.1806. You can manually download it here, and it has the exact same changelog as the update for version 1803.
Windows 10 version 1703 is only supported for the original Surface Hub, but it still gets KB4550939, bringing the build number to 15063.2346. You can manually download it here, and these are the highlights:
- Updates to improve security when Windows performs basic operations.
- Updates to improve security when using Microsoft Office products.
Here's the full list of fixes:
- Addresses an issue that causes a memory leak in the LsaIso.exe process when the server is under a heavy authentication load and Credential Guard is enabled.
- Addresses an issue with running klist.exe that causes lsass.exe to stop working and generates an access violation error (0xC0000005).
- Addresses an issue with merging Windows Defender Application Control policies that sometimes generates a duplicate rule ID error and causes the Merge-CIPolicy PowerShell command to fail.
- Security updates to the Microsoft Scripting Engine, Windows Kernel, Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Media, Windows Management, Windows Fundamentals, Windows Core Networking, Windows Update Stack, and the Microsoft JET Database Engine.
It also has the same known issue as the update for version 1803.
Windows 10 version 1607 is only supported for LTSC customers and Windows Server 2016 customers, and those users will get KB4550929, bringing the build number to 14393.3630. You can manually download it here, and these are the highlights:
- Updates to improve security when Windows performs basic operations.
- Updates to improve security when using Microsoft Office products.
Here's the list of fixes:
- Security updates to the Microsoft Scripting Engine, Windows Kernel, Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Media, Windows Cloud Infrastructure, Windows Fundamentals, Windows Core Networking, Windows Update Stack, and the Microsoft JET Database Engine.
There's also one known issue:
| Symptom | Workaround |
|---|---|
| After installing KB4467684, the cluster service may fail to start with the error “2245 (NERR_PasswordTooShort)” if the group policy “Minimum Password Length” is configured with greater than 14 characters. |
Set the domain default "Minimum Password Length" policy to less than or equal to 14 characters. Microsoft is working on a resolution and will provide an update in an upcoming release. |
Finally, Windows 10 version 1507 is only supported for LTSC customers, and those users will get KB4550930, bringing the build number to 10240.18545. You can manually download it here, and it contains the same highlights and fixes as the update for version 1607, but the same known issue as the update for version 1803.
As usual, these are mandatory updates, meaning that you can either manually install them, get them through Windows Update, or they'll be installed automatically.
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