Microsoft Download Center Archive
![]() | Windows 8.1 Update for x64-based Systems (KB2919355) |
Windows 8.1 Update is a cumulative set of security updates, critical updates and updates.
- Windows 8.1 Update is a cumulative set of security updates, critical updates and updates. You must install Windows 8.1 Update to ensure that your computer can continue to receive future Windows Updates, including security updates. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information. After you install this item, you may have to restart your computer.
Knowledge Base Articles: | |
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Security Bulletins: |
Files
![]() | Status: LiveThis download is still available on microsoft.com. The downloads below will come directly from the Microsoft Download Center. |
File | Size |
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![]() SHA1: 3104315db9d84f6a2a56b9621e89ea66a8c27604 | 20 KB |
![]() SHA1: e6f4da4d33564419065a7370865faacf9b40ff72 | 690.98 MB |
![]() SHA1: 6aee5fda6e2a6729d1fbae6eac08693acd70d985 | 48.00 MB |
![]() SHA1: 234a5fc4955f81541f5bfc0d447e4fc4934efc38 | 126.47 MB |
![]() SHA1: 4abc0a39c9e500c0fbe9c41282169c92315cafc2 | 297 KB |
![]() SHA1: 3ed1574369e36b11f37af41aa3a875a115a3eac1 | 19.58 MB |
![]() SHA1: 574ba2d60baa13645b764f55069b74b2de866975 | 2.76 MB |
File sizes and hashes are retrieved from the Wayback Machine’s indexes. They may not match the latest versions of files hosted on Microsoft servers.
System Requirements
Operating Systems: Windows 8.1
Installation Instructions
- To start the download, click the Download button and then do one of the following, or select another language from Change Language and then click Change.
- Click Run to start the installation immediately.
- Click Save to copy the download to your computer for installation at a later time.
- These KB's must be installed in the following order: clearcompressionflag.exe, KB2919355, KB2932046, KB2959977, KB2937592, KB2938439, and KB2934018.
- KB2919442 is a prerequisite for Windows 8.1 Update and should be installed before attempting to install KB2919355