if it just started happening it is usually a failed update that clogs everything else up. You can do a system restore to a time before the first error and that will back it off. then do a manual update by using the internet explorer / tools / windows update
to download and install manually
instructions for the system restore are below
if it started a while ago or that does not work this page from microsoft has a link to download an update trouble shooter you can run. As well as some steps to try to fix it manually
System restore instructions - windows 7 or 8 8.1
hold the windows logo key down and hit Rtype rstrui.exe in the run box that comes up and hit enter
select restore to an earlier date.
Under the "suggested restore" which is usually not old enough to help is a link for "OTHER RESTORE POINTS"click that if the suggested ones are not BEFORE THE PROBLEM STARTED
choose a date that is BEFORE you experienced the problem
hit ok / restore
the computer will start to shut down
a restoring settngs box will appear with a status bar
when it finishes your computer will restart with the same settings it had on the date you restored to. your data will not be affected.
It is not perfect. But it fixes a lot of things.