This article describes how to manually download the latest antimalware definition updates for Microsoft Forefront Client Security, Microsoft Forefront Endpoint Protection 2010 and Microsoft System Center 2012 Endpoint Protection.

While browsing the Internet or working on your computer after browsing the internet, you may notice that a new window titled PC Repair may open, you are asked to defragment your computer and then asked for personal information such as your email address.

To download the Microsoft Forefront Client Security beta malicious software definition update for 32-bit (x86-based) versions of Windows, click the following link:

Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see Covered malware families). For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.

Learn how to pause or cancel content that’s in the process of being downloaded or installed on your Xbox console.

Download the installer for 64-bit versions of Windows Server 2003 or 64-bit versions of Windows XP This redistributable component is only for 32-bit operating systems. You cannot install this component on a computer that is running the 64-bit versions of Windows Server 2003 or of Windows XP.

Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see the "Covered malware families" list in the "Release information" section of KB 890830). For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.

Describes an update that fixes issues in Visual C++ 2013. Includes descriptions of the issues that are fixed by the update.

Only certain builds of Windows 10 Version 1703, Version 1607, Version 1511, and Version 1507 require this update. Devices that are running these builds automatically get the update downloaded and installed through Windows Update.

To update the 32-bit MSXML 4.0 parser in WoW mode on a 64-bit operating system, install the 32-bit MSXML 4.0 package. For example, to update a 64-bit English language operating system, install the Msxml4-KB927978-enu.exe package.