Microsoft releases Windows 10 build 18363.535, 17763.xxx - here's what's new

Today is Patch Tuesday, the second Tuesday of the month in which Microsoft releases updates for all supported versions of Windows 10. These updates are mandatory, so if you don't choose to install them now, they'll be installed automatically at some point. Normally, Microsoft released optional updates in the middle of the month, but that didn't happen this time, oddly enough.

If you're on Windows 10 version 1903 or 1909, you'll get KB4530684, bringing the build number to 18362.535 or 18363.535, respectively. You can manually download it here, and there's one highlight:

  • Updates to improve security when Windows performs basic operations.

Here's the full list of fixes:

  • Addresses an issue that might cause error 0x3B in cldflt.sys on some devices.
  • Addresses an issue that might prevent you from creating a local user account using the Input Method Editor (IME) for Chinese, Japanese, or Korean languages. This issue occurs when setting up a new Windows device during the Out of Box Experience (OOBE).
  • Security updates to Windows Virtualization, Windows Kernel, the Microsoft Scripting Engine, and Windows Server.

Those on the Windows 10 November 2018 Update, or version 1809, will get KB4530715, bringing the build number to 17763.914. 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 external devices (such as game controllers and web cameras).
  • Updates an issue in which the Microsoft Store might fail to open on Windows on Arm.

Here's the full list of fixes:

  • Addresses an issue with diagnostic data processing when a device has the Diagnostic data setting enabled and set to Basic.
  • Addresses an issue in which the Microsoft Store might fail to open on Windows on Arm.
  • Security updates to Windows Virtualization, Windows Kernel, Windows Peripherals, the Microsoft Scripting Engine, and Windows Server.

This one also has several known issues:

Symptom Workaround
Certain operations, such as rename, that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, “STATUS_BAD_ IMPERSONATION_LEVEL (0xC00000A5)”. This occurs when you perform the operation on a CSV owner node from a process that doesn’t have administrator privilege.

Do one of the following:

  • Perform the operation from a process that has administrator privilege.
  • Perform the operation from a node that doesn’t have CSV ownership.
Microsoft is working on a resolution and will provide an update in an upcoming release.
After installing KB4493509, devices with some Asian language packs installed may receive the error, "0x800f0982 - PSFX_E_MATCHING_ COMPONENT_NOT_FOUND."
  1. Uninstall and reinstall any recently added language packs. For instructions, see Manage the input and display language settings in Windows 10.
  2. Select Check for Updates and install the April 2019 Cumulative Update. For instructions, see Update Windows 10.

Note If reinstalling the language pack does not mitigate the issue, reset your PC as follows:

  1. Go to the Settings app > Recovery.
  2. Select Get Started under the Reset this PC recovery option.
  3. Select Keep my Files.

Microsoft is working on a resolution and will provide an update in an upcoming release.

When setting up a new Windows device during the Out of Box Experience (OOBE), you might be unable to create a local user when using Input Method Editor (IME). This issue might affect you if you are using the IME for Chinese, Japanese, or Korean languages.

Note This issue does not affect using a Microsoft Account during OOBE.

To mitigate this issue, set the keyboard language to English during user creation or use a Microsoft Account to complete OOBE. You can set the keyboard language back to your preferred language after user creation. Once the OOBE is done and you are at the desktop, you can rename the current user using these instructions. If you prefer to create a new local user, see KB4026923.

Microsoft is working on a resolution and will provide an update in an upcoming release.

If you're on the Windows 10 April 2018 Update, or version 1803, you'll get KB4537017, bringing the build number to 17134.1184. 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 external devices (such as game controllers and web cameras).
  • Updates an issue in which the Microsoft Store might fail to open on Windows on Arm.

Here's the full list of fixes:

  • Addresses an issue in which the Microsoft Store might fail to open on Windows on Arm.
  • Security updates to Windows Virtualization, Windows Kernel, Windows Peripherals, the Microsoft Scripting Engine, and Windows Server .

There are also a couple of known issues to be aware of:

Symptom Workaround
Certain operations, such as rename, that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, “STATUS_BAD_ IMPERSONATION_LEVEL (0xC00000A5)”. This occurs when you perform the operation on a CSV owner node from a process that doesn’t have administrator privilege.

Do one of the following:

  • Perform the operation from a process that has administrator privilege.
  • Perform the operation from a node that doesn’t have CSV ownership.
Microsoft is working on a resolution and will provide an update in an upcoming release.

When setting up a new Windows device during the Out of Box Experience (OOBE), you might be unable to create a local user when using Input Method Editor (IME). This issue might affect you if you are using the IME for Chinese, Japanese, or Korean languages.

Note This issue does not affect using a Microsoft Account during OOBE.

To mitigate this issue, set the keyboard language to English during user creation or use a Microsoft Account to complete OOBE. You can set the keyboard language back to your preferred language after user creation. Once the OOBE is done and you are at the desktop, you can rename the current user using these instructions. If you prefer to create a new local user, see KB4026923.

Microsoft is working on a resolution and will provide an update in an upcoming release.


Like Windows 10 version 1803, version 1709 is only supported for Enterprise and Education SKUs of Windows 10. Those users will get KB4530714, bringing the build number to 16299.1565. You can manually download it here, and the release notes are exactly the same as the ones for the update to version 1803. Note that if you're on Windows 10 Mobile, you'll also be getting your last update today, as it will no longer be supported.

Windows 10 version 1703 is only supported for the original Surface Hub, but those users will get KB4530711, bringing the build number to 15063.2224. 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 external devices (such as game controllers and web cameras).

Here are the fixes:

  • Addresses an issue with evaluating the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.
  • Security updates to Windows Virtualization, Windows Kernel, Windows Peripherals, the Microsoft Scripting Engine, and Windows Server.

Windows 10 version 1607 is only supported through the Long-Term Servicing Channel and for Windows Server 2016, but those users will get KB4530689, bringing the build number to 14393.3384. 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 external devices (such as game controllers and web cameras).
  • Updates to improve security when using input devices such as a mouse, keyboard, or stylus.

There's one entry under fixes and improvements:

  • Security updates to Windows Server, Windows Peripherals, Windows Kernel, Windows Virtualization, the Microsoft Scripting Engine, and Windows Input and Composition.

And there are two known issues:

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.

Certain operations, such as rename, that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, “STATUS_BAD_ IMPERSONATION_LEVEL (0xC00000A5)”. This occurs when you perform the operation on a CSV owner node from a process that doesn’t have administrator privilege.

Do one of the following:

  • Perform the operation from a process that has administrator privilege.
  • Perform the operation from a node that doesn’t have CSV ownership.
Microsoft is working on a resolution and will provide an update in an upcoming release.

Finally, the original version of Windows 10, now called version 1507, is getting KB4530681, bringing the build number to 10240.18427. 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 external devices (such as game controllers and web cameras).

There's one thing listed on the changelog:

  • Security updates to Windows Virtualization, Windows Kernel, Windows Peripherals, the Microsoft Scripting Engine, and Windows Server.

And finally, one known issue:

Symptom Workaround
Certain operations, such as rename, that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, “STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)”. This occurs when you perform the operation on a CSV owner node from a process that doesn’t have administrator privilege.

Do one of the following:

  • Perform the operation from a process that has administrator privilege.
  • Perform the operation from a node that doesn’t have CSV ownership.
Microsoft is working on a resolution and will provide an update in an upcoming release.


All of these updates can be obtained through Windows Update, or they'll be installed automatically.

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