Microsoft Download Center Archive
 | Security Update for Microsoft .NET Framework 4.6 and .NET Framework 4.6.1 on Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2 |
A security issue has been identified that could allow an unauthenticated remote attacker to compromise your system and gain access to information.
- A security issue has been identified that could allow an unauthenticated remote attacker to compromise your system and gain access to information. You can help protect your system by installing this update from Microsoft. After you install this update, you may have to restart your system.
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Files
 | Status: LiveThis download is still available on microsoft.com. The downloads below will come directly from the Microsoft Download Center. |
| File | Size |
|---|---|
 Windows8.1-KB3127231-x64.msuSHA1: 503278bed3ab1477511b08f5bba305525491a44e | 535 KB |
| Windows8.1-KB3127231-x86.msu |
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, Windows RT 8.1, Windows Server 2012 R2
Note: More information about Service Pack levels currently supported for the platforms listed above can be found in the following page: Microsoft Product Support Lifecycle.
Installation Instructions
- 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.
- 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.