Windows update error 66a

[bond32]

Getting error code 66A Windows update encountered an unknown error. 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)

Installation date: ‎10/‎17/‎2010 2:14 PM

Installation status: Failed

Error details: Code 66A

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.

[Mr Alfa]

For this you need to check whether the .NET Framework is installed on to your system or not so you can simply check in Add/Remove programs within the control panel. After that you can try to download the service pack 1 from the following link and then save it on your desktop or any location you wish. Install the SP1 as soon as you finish downloading and restart the system.