In Windows 2008, when you do a windows update you can receive a error code 80070490  when apply the update KB967723.

If you experience this problem, download the patch manually and install it.

Download i386 from here:

http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=35c1d5a9-a953-4fc6-90c0-d2358c7b89e6

Download X64 from here:

http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=6e46822e-f79d-492d-ad01-ee680ad324f5