What improvements does the KB4507450 patch bring?

Microsoft updated the KB4507450 patch for win10 system on July 9, 2019. The new patch content may include: update issues using BitLocker encrypted recovery mode, updates to improve security when using Internet Explorer, Microsoft Edge, wireless technology and Microsoft Office products, etc. For more updates and repairs, let’s take a look at the news the editor brings to you!

What’s in the KB4507450 update

Important information about the KB4507450 patch

- Use BitLocker to encrypt recovery Schema update issue.

- Updates to improve security when using Internet Explorer, Microsoft Edge, wireless technologies, and Microsoft Office products.

KB4507450 Patch Improvements Patch

● Provides protection against a variant of the Specter Variant 1 speculative execution side-channel vulnerability (CVE-2019-1125).

● Address an issue that could cause BitLocker to enter recovery mode if BitLocker is also available when installing an update.

● Addresses an issue that may cause some Hyper-V enabled devices to enter BitLocker recovery mode and receive error "0xC0210000".

● Windows Server, Microsoft Scripting Engine, Windows Storage and File Systems, Microsoft Graphics Components, Windows Input and Composition, Windows Virtualization, Windows Application Platform and Frameworks, Windows Kernel, Security for Internet Explorer and Microsoft Edge renew.

KB4507450 Patch Update Known Issues

Symptom Description One:

- To files or files on a Cluster Shared Volume (CSV) Certain operations on a folder, such as renaming, may fail with the error "STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)".

This occurs when operations are performed on the CSV owner node from a process that does not have administrator rights.

Workaround:

Perform one of the following actions:

-Perform the action from a process with administrator privileges.

- Perform operations from a node that does not own the CSV.

Symptom description two:

- After installing this update, opening or using the Windows–Eyes screen reader application may cause errors and some features may not function properly.

PS: Users who have migrated from Windows–Eyes to JAWS, another screen reader from Freedom Scientific, will not be affected by this issue.

Workaround:

- This issue is resolved in KB4507467.

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