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Microsoft security advisory: Deprecation of SHA-1 hashing algorithm for Microsoft root certificate program: January 12, 2016

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Summary

Microsoft has released a Microsoft security advisory about this issue for IT professionals. The security advisory contains additional security-related information. To learn more about the vulnerability, see https://technet.microsoft.com/security/advisory/3123479.

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More Information

Important
  • All future security and non-security updates for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 require update 2919355 to be installed. We recommend that you install update 2919355 on your Windows RT 8.1-based, Windows 8.1-based, or Windows Server 2012 R2-based computer so that you receive future updates.
  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

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How to obtain and install the update

Method 1: Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see
Get security updates automatically.

Note For Windows RT and Windows RT 8.1, this update is available through Windows Update only.

Method 2: Microsoft Download Center
You can obtain the stand-alone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

Click the download link in the following table that corresponds to the version of Windows that you are running. Determine whether your computer is running the 32-bit or 64-bit version of Windows.

Windows versionDownload link
Windows 7 SP1Download Download 32-bit (3123479)
Download Download 64-bit (3123479)
Windows Embedded Standard 7Download Download 32-bit (3123479)
Download Download 64-bit (3123479)
Windows Server 2008 R2 SP1Download Download 64-bit (3123479)
Download Download Itanium-based (3123479)
Windows 8Download Download 32-bit (3123479)
Download Download 64-bit (3123479)
Windows Server 2012Download Download 64-bit (3123479)
Windows 8.1Download Download 32-bit (3123479)
Download Download 64-bit (3123479)
Windows Server 2012 R2Download Download 64-bit (KB3045685)

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More Information

File hash information
Package NamePackage Hash SHA 1Package Hash SHA 2
Windows6.1-KB3123479-ia64.msu0002C5438138092A3F76E2D71C67185CC97DBB776A30A12CC7AA55CC3AE45DE7CB1F1C87580BCA9C786F36A0BE5B1367DB1B703F
Windows6.1-KB3123479-x64.msuF8D8752D60DA493C119B5B03C6B54FFC5DBFF69DE2A25310A9395104C92EB293C7031D6D4DABD2BBE0DD3820309837610C1F13C9
Windows6.1-KB3123479-x86.msu9C0C4A6279016FF83E0DADFC7976CD0C05FB97BD13438E5EC7E6865055AC4ED9CE3AC3F1E54619572C9E370BD5D7F58EAD2A9ACF
Windows8-RT-KB3123479-x64.msuC5FA41DD82269DC8A302865459C72A849801A9972269B6358D01D26B48077BEFB00C61F422F0CF8E57AD78D0E55BB097CD958083
Windows8-RT-KB3123479-x86.msu8D14C4FF52D6A6D74407FECED922A89440DF4F1BB7BA12454BC85B6D474553EB4540B5738A71376A2ECF5EC4B7E6495B242D5E5D
Windows8.1-KB3123479-x64.msu718684B947C1DADAA9FC0942196E1001AF7590DFEFE698E85967D583A403CE7526B542FBE3715B517E31D073CA849046622FC84B
Windows8.1-KB3123479-x86.msu5D63573C58F6858E08090B4C42328B2702B009A9EC93C205A37ED2758488272A255A482ABAB95677FBC132FE4FD801324B08A93D
How to obtain help and support for this security update
Help for installing updates: Support for Microsoft Update

Security solutions for IT professionals: TechNet Security Troubleshooting and Support

Help for protecting your Windows-based computer from viruses and malware: Virus Solution and Security Center

Local support according to your country: International Support

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Keywords: kb, kbsurveynew, kbmustloc, kblangall, kbsecreview, kbsecurity, kbsecadvisory, kbinfo, kbexpertiseinter, kbsecvulnerability

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Article Info
Article ID : 3123479
Revision : 3
Created on : 4/13/2020
Published on : 4/16/2020
Exists online : False
Views : 553