Detailed explanation of the specific contents of KB457931 update

Friends who use the win10 system have recently seen the update patch KB457931, but many of them don’t know what the update content is. Today, this site will bring you a detailed introduction to the KB457931 update content. Let’s take a look.

What has been updated in KB457931:

1: Update highlights.

1. Updated to improve security when using "Microsoft Office" products.

2. Updated for verifying username and password.

3. Updated to improve the security of "Windows" when performing basic operations.

Two: Fix bug.

1. Solved the problem of possible privilege escalation in win32k.

2. Solved the problem of Group Policy Service, which may recursively delete key files from "%systemroot%\systm32" in alphabetical order.

When the policy is configured to delete cached configuration files, deletion of these files may cause error "0x5A (CRITICAL_SERVICE_FAILED)" startup failure.

3. Solved the problem of creating empty ports in the trial user interface.

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