TRY THIS method
download & install SYSTEM UPDATE READINESS TOOL FOR WINDOWS 7 BASED OS
FROM BELOW LINK
FOR X86 BASED
http://www.microsoft.com/en-in/download/details.aspx?id=3132
FOR X64 BASED
http://www.microsoft.com/en-in/download/details.aspx?id=1540
please conform below option
click RUN , type SERVICES.MSC then enter
on the right side , scroll to WINDOWS UPDATE , right click by mouse , click PROPERTIES and then make it AUTOMATIC (DEAYED START ) then OK
then reboot your ssytem
i hope this tool will clear your update problems .