error code 670 when installing Microsoft Silverlight update KB2668562

I am using Windows 7 and keep trying unsuccessfully to install a security update to Microsoft Silverlight  (KB2668562).  I keep getting error code 670  Windows Update encountered an unknown error.  Is this update really necessary and if so, how can I successfully install it?  Thanks.

Question Info

Last updated May 12, 2018 Views 994 Applies to:

You will find support for Silverlight in these forums: 

Note: KB2668562 was superseded (replaced) by KB2690729 on 08 May 2012 so either Silverlight v4.1.10329.0 (or higher) or Silverlight v5.0.61118.0 (or higher) should be installed now.


HOW TO Do a clean install of Silverlight

~Robear Dyer (PA Bear)
Microsoft MVP (Windows Client) since October 2002

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