This particular update repeatedly fails to install. I've tried rebooting several times but the install still fails. The linked to the help doc for Windows Update error code 2 is completely unhelpful and refers only to receive the error in the context of installing a language pack.
Any suggestions on fixing this problem?
Security Update for .NET Framework 4 on Windows XP, Windows Server 2003, Windows Vista, Windows 7, Windows Server 2008, Windows Server 2008 R2 for x64-based Systems (KB2160841)
Download size: 2.5 MB
You may need to restart your computer for this update to take effect.
Update type: Important
A security issue has been identified that could allow an attacker to compromise your Windows-based system that is running the Microsoft .NET Framework and gain complete control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer.
Help and Support: