Microsoft Update Catalog

Update Details

2021-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5001393)

Last Modified: 4/13/2021

Size: 29.8 MB

UpdateID: 63841b9e-1420-42d7-83f5-40b9b2e05421

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Details:

Overview Language Selection Package Details Install Resources

Description: A security issue has been identified in a Microsoft software product that could affect your system. You can help protect your system by installing this update from Microsoft. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article. After you install this update, you may have to restart your system.

Architecture: X86

Classification: Security Updates

Supported products: Windows 8.1

Supported languages: all

MSRC Number: n/a

MSRC severity: Critical

KB article numbers: 5001393

More information:

https://support.microsoft.com/help/5001393

Support Url:

https://support.microsoft.com/help/5001393

This update has been replaced by the following updates:

n/a

This update replaces the following updates:

Security Update for Windows 8.1 (KB3177186)

Security Update for Windows 8.1 (KB3155784)

Security Update for Windows 8.1 (KB3146706)

Update for Windows 8.1 (KB3187022)

Security Update for Windows 8.1 (KB3185911)

Security Update for Windows 8.1 (KB3145739)

Security Update for Windows 8.1 (KB3153704)

Security Update for Windows 8.1 (KB3153199)

Security Update for Windows 8.1 (KB2978668)

Security Update for Windows 8.1 (KB3177725)

Update for Windows 8.1 (KB3139923)

Security Update for Windows 8.1 (KB3168965)

Update for Windows 8.1 (KB3065013)

Security Update for Windows 8.1 (KB3072630)

Security Update for Windows 8.1 (KB3178034)

Update for Windows 8.1 (KB3153731)

Security Update for Windows 8.1 (KB3161664)

Security Update for Windows 8.1 (KB3164035)

Security Update for Windows 8.1 (KB3126446)

2017-11 Update for Windows 8.1 for x86-based Systems (KB4055038)

Update for Windows 8.1 (KB3177723)

Security Update for Windows 8.1 (KB3156019)

Security Update for Windows 8.1 (KB2957189)

Security Update for Windows 8.1 (KB3153171)

Update for Windows 8.1 (KB3134785)

Security Update for Windows 8.1 (KB2993651)

Security Update for Windows 8.1 (KB3156013)

Security Update for Windows 8.1 (KB3108347)

Security Update for Windows 8.1 (KB2961858) without KB2919355

Update for Internet Explorer 11 for Windows 8.1 (KB3200006)

Security Update for Windows 8.1 (KB2922229)

Update for Windows 8.1 (KB3182203)

Security Update for Windows 8.1 (KB3170377)

Update for Windows 8.1 (KB3192321)

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