Microsoft Download Center Archive

Security Update for Microsoft .NET Framework 3.5 on Windows 8 and Windows Server 2012

  • Published:
  • Version: 3.5
  • Category: Security Patch
  • Language: English

A security issue has been identified that could allow an unauthenticated remote attacker to compromise your system and gain control over it.

  • A security issue has been identified that could allow an unauthenticated remote attacker to compromise your system and gain control over it. You can help protect your system by installing this update from Microsoft. After you install this update, you may have to restart your system.
Knowledge Base Articles:
Security Bulletins:

Files

Status: Deleted

This download is no longer available on microsoft.com. The downloads below are archives provided by the Internet Archive Wayback Machine from the Microsoft Download Center prior to August 2020.

FileSize
Windows8-RT-KB2840633-x64.msu
SHA1: e506e74b9b52c724ec8160a4837cb8dab30b285d
419 KB
Windows8-RT-KB2840633-x86.msu
SHA1: 84b1b6aa29a0e5531841f4a7070e159a0480a98a
417 KB

System Requirements

Operating Systems: Windows 8, Windows Server 2012

Installation Instructions

    1. Click the Download button on this page to start the download, or select a different language from the Change language drop-down list and click Change.
    2. Do one of the following:
      • To start the installation immediately, click Run.
      • To save the download to your computer for installation at a later time, click Save.
      • To cancel the installation, click Cancel.